Om alle delers van het getal 856.438.440 te vinden:
- 1. Ontbind het getal in priemfactoren.
- Ontdek hoe je kunt uitrekenen hoeveel delers een getal heeft, zonder de delers daadwerkelijk te berekenen.
- 2. Vermenigvuldig deze priemfactoren in al hun unieke combinaties, die verschillende resultaten opleveren.
1. Voer de ontbinding van het getal 856.438.440 in de priemfactoren:
Het ontbinden in priemfactoren van een getal: de priemgetallen vinden die zich vermenigvuldigen om dat getal te maken.
856.438.440 = 23 × 3 × 5 × 11 × 13 × 29 × 1.721
856.438.440 is geen priemgetal maar een samengesteld getal.
- De natuurlijke getallen die alleen deelbaar zijn door 1 en zichzelf worden priemgetallen genoemd (deelbare getallen = getallen die zonder rest door andere getallen worden gedeeld). Een priemgetal heeft precies twee delers: 1 en het getal zelf.
- Voorbeelden van priemgetallen: 2 (delers 1, 2), 3 (delers 1, 3), 5 (delers 1, 5), 7 (delers 1, 7), 11 (delers 1, 11), 13 (delers 1, 13), ...
- Een samengesteld getal is een natuurlijk getal dat ten minste één andere deler heeft dan 1 en zichzelf. Het is dus noch een priemgetal, noch 1.
- Voorbeelden van samengestelde getallen: 4 (het heeft 3 delers: 1, 2, 4), 6 (het heeft 4 delers: 1, 2, 3, 6), 8 (het heeft 4 delers: 1, 2, 4, 8), 9 (het heeft 3 delers: 1, 3, 9), 10 (het heeft 4 delers: 1, 2, 5, 10), 12 (het heeft 6 delers: 1, 2, 3, 4, 6, 12), ...
Hoe tel je het aantal delers van een getal?
Zonder de delers daadwerkelijk te berekenen
- Als een getal N wordt ontbonden in priemfactoren als:
N = am × bk × cz
waarbij a, b, c de priemfactoren zijn; m, k, z hun exponenten, natuurlijke getallen, .... - ...
- Dan kan het aantal delers van het getal N op deze manier worden berekend:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In ons geval wordt het aantal delers berekend als:
- n = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 × 2 × 2 × 2 = 256
Maar om de delers daadwerkelijk te berekenen, zie hieronder...
2. Vermenigvuldig de priemfactoren van het getal 856.438.440
- Vermenigvuldig de priemfactoren die betrokken zijn bij het ontbinden in priemfactoren van het getal, in al hun unieke combinaties, die verschillende resultaten opleveren.
- Overweeg ook de exponenten van deze priemfactoren.
- Voeg ook 1 toe aan de lijst met delers. Alle getallen zijn deelbaar door 1.
Alle delers staan hieronder vermeld - in oplopende volgorde
De lijst met delers:
Getallen anders dan 1 die geen priemfactoren zijn, zijn de samengestelde delers.
noch priem noch samengesteld =
1
priemfactor =
2
priemfactor =
3
samengestelde deler = 2
2 =
4
priemfactor =
5
samengestelde deler = 2 × 3 =
6
samengestelde deler = 2
3 =
8
samengestelde deler = 2 × 5 =
10
priemfactor =
11
samengestelde deler = 2
2 × 3 =
12
priemfactor =
13
samengestelde deler = 3 × 5 =
15
samengestelde deler = 2
2 × 5 =
20
samengestelde deler = 2 × 11 =
22
samengestelde deler = 2
3 × 3 =
24
samengestelde deler = 2 × 13 =
26
priemfactor =
29
samengestelde deler = 2 × 3 × 5 =
30
samengestelde deler = 3 × 11 =
33
samengestelde deler = 3 × 13 =
39
samengestelde deler = 2
3 × 5 =
40
samengestelde deler = 2
2 × 11 =
44
samengestelde deler = 2
2 × 13 =
52
samengestelde deler = 5 × 11 =
55
samengestelde deler = 2 × 29 =
58
samengestelde deler = 2
2 × 3 × 5 =
60
samengestelde deler = 5 × 13 =
65
samengestelde deler = 2 × 3 × 11 =
66
samengestelde deler = 2 × 3 × 13 =
78
samengestelde deler = 3 × 29 =
87
samengestelde deler = 2
3 × 11 =
88
samengestelde deler = 2
3 × 13 =
104
samengestelde deler = 2 × 5 × 11 =
110
samengestelde deler = 2
2 × 29 =
116
samengestelde deler = 2
3 × 3 × 5 =
120
samengestelde deler = 2 × 5 × 13 =
130
samengestelde deler = 2
2 × 3 × 11 =
132
samengestelde deler = 11 × 13 =
143
samengestelde deler = 5 × 29 =
145
samengestelde deler = 2
2 × 3 × 13 =
156
samengestelde deler = 3 × 5 × 11 =
165
samengestelde deler = 2 × 3 × 29 =
174
samengestelde deler = 3 × 5 × 13 =
195
samengestelde deler = 2
2 × 5 × 11 =
220
samengestelde deler = 2
3 × 29 =
232
samengestelde deler = 2
2 × 5 × 13 =
260
samengestelde deler = 2
3 × 3 × 11 =
264
samengestelde deler = 2 × 11 × 13 =
286
samengestelde deler = 2 × 5 × 29 =
290
samengestelde deler = 2
3 × 3 × 13 =
312
samengestelde deler = 11 × 29 =
319
samengestelde deler = 2 × 3 × 5 × 11 =
330
samengestelde deler = 2
2 × 3 × 29 =
348
samengestelde deler = 13 × 29 =
377
samengestelde deler = 2 × 3 × 5 × 13 =
390
samengestelde deler = 3 × 11 × 13 =
429
samengestelde deler = 3 × 5 × 29 =
435
samengestelde deler = 2
3 × 5 × 11 =
440
samengestelde deler = 2
3 × 5 × 13 =
520
samengestelde deler = 2
2 × 11 × 13 =
572
samengestelde deler = 2
2 × 5 × 29 =
580
samengestelde deler = 2 × 11 × 29 =
638
samengestelde deler = 2
2 × 3 × 5 × 11 =
660
samengestelde deler = 2
3 × 3 × 29 =
696
samengestelde deler = 5 × 11 × 13 =
715
samengestelde deler = 2 × 13 × 29 =
754
samengestelde deler = 2
2 × 3 × 5 × 13 =
780
samengestelde deler = 2 × 3 × 11 × 13 =
858
samengestelde deler = 2 × 3 × 5 × 29 =
870
samengestelde deler = 3 × 11 × 29 =
957
samengestelde deler = 3 × 13 × 29 =
1.131
samengestelde deler = 2
3 × 11 × 13 =
1.144
samengestelde deler = 2
3 × 5 × 29 =
1.160
samengestelde deler = 2
2 × 11 × 29 =
1.276
samengestelde deler = 2
3 × 3 × 5 × 11 =
1.320
samengestelde deler = 2 × 5 × 11 × 13 =
1.430
samengestelde deler = 2
2 × 13 × 29 =
1.508
samengestelde deler = 2
3 × 3 × 5 × 13 =
1.560
samengestelde deler = 5 × 11 × 29 =
1.595
samengestelde deler = 2
2 × 3 × 11 × 13 =
1.716
priemfactor =
1.721
samengestelde deler = 2
2 × 3 × 5 × 29 =
1.740
samengestelde deler = 5 × 13 × 29 =
1.885
samengestelde deler = 2 × 3 × 11 × 29 =
1.914
samengestelde deler = 3 × 5 × 11 × 13 =
2.145
samengestelde deler = 2 × 3 × 13 × 29 =
2.262
samengestelde deler = 2
3 × 11 × 29 =
2.552
samengestelde deler = 2
2 × 5 × 11 × 13 =
2.860
samengestelde deler = 2
3 × 13 × 29 =
3.016
samengestelde deler = 2 × 5 × 11 × 29 =
3.190
samengestelde deler = 2
3 × 3 × 11 × 13 =
3.432
samengestelde deler = 2 × 1.721 =
3.442
samengestelde deler = 2
3 × 3 × 5 × 29 =
3.480
samengestelde deler = 2 × 5 × 13 × 29 =
3.770
samengestelde deler = 2
2 × 3 × 11 × 29 =
3.828
samengestelde deler = 11 × 13 × 29 =
4.147
samengestelde deler = 2 × 3 × 5 × 11 × 13 =
4.290
samengestelde deler = 2
2 × 3 × 13 × 29 =
4.524
samengestelde deler = 3 × 5 × 11 × 29 =
4.785
samengestelde deler = 3 × 1.721 =
5.163
samengestelde deler = 3 × 5 × 13 × 29 =
5.655
samengestelde deler = 2
3 × 5 × 11 × 13 =
5.720
samengestelde deler = 2
2 × 5 × 11 × 29 =
6.380
samengestelde deler = 2
2 × 1.721 =
6.884
samengestelde deler = 2
2 × 5 × 13 × 29 =
7.540
samengestelde deler = 2
3 × 3 × 11 × 29 =
7.656
samengestelde deler = 2 × 11 × 13 × 29 =
8.294
samengestelde deler = 2
2 × 3 × 5 × 11 × 13 =
8.580
samengestelde deler = 5 × 1.721 =
8.605
samengestelde deler = 2
3 × 3 × 13 × 29 =
9.048
samengestelde deler = 2 × 3 × 5 × 11 × 29 =
9.570
samengestelde deler = 2 × 3 × 1.721 =
10.326
samengestelde deler = 2 × 3 × 5 × 13 × 29 =
11.310
samengestelde deler = 3 × 11 × 13 × 29 =
12.441
samengestelde deler = 2
3 × 5 × 11 × 29 =
12.760
samengestelde deler = 2
3 × 1.721 =
13.768
samengestelde deler = 2
3 × 5 × 13 × 29 =
15.080
samengestelde deler = 2
2 × 11 × 13 × 29 =
16.588
samengestelde deler = 2
3 × 3 × 5 × 11 × 13 =
17.160
samengestelde deler = 2 × 5 × 1.721 =
17.210
samengestelde deler = 11 × 1.721 =
18.931
samengestelde deler = 2
2 × 3 × 5 × 11 × 29 =
19.140
samengestelde deler = 2
2 × 3 × 1.721 =
20.652
samengestelde deler = 5 × 11 × 13 × 29 =
20.735
samengestelde deler = 13 × 1.721 =
22.373
samengestelde deler = 2
2 × 3 × 5 × 13 × 29 =
22.620
samengestelde deler = 2 × 3 × 11 × 13 × 29 =
24.882
samengestelde deler = 3 × 5 × 1.721 =
25.815
Deze lijst gaat hieronder verder...
... Deze lijst gaat verder van bovenaf
samengestelde deler = 2
3 × 11 × 13 × 29 =
33.176
samengestelde deler = 2
2 × 5 × 1.721 =
34.420
samengestelde deler = 2 × 11 × 1.721 =
37.862
samengestelde deler = 2
3 × 3 × 5 × 11 × 29 =
38.280
samengestelde deler = 2
3 × 3 × 1.721 =
41.304
samengestelde deler = 2 × 5 × 11 × 13 × 29 =
41.470
samengestelde deler = 2 × 13 × 1.721 =
44.746
samengestelde deler = 2
3 × 3 × 5 × 13 × 29 =
45.240
samengestelde deler = 2
2 × 3 × 11 × 13 × 29 =
49.764
samengestelde deler = 29 × 1.721 =
49.909
samengestelde deler = 2 × 3 × 5 × 1.721 =
51.630
samengestelde deler = 3 × 11 × 1.721 =
56.793
samengestelde deler = 3 × 5 × 11 × 13 × 29 =
62.205
samengestelde deler = 3 × 13 × 1.721 =
67.119
samengestelde deler = 2
3 × 5 × 1.721 =
68.840
samengestelde deler = 2
2 × 11 × 1.721 =
75.724
samengestelde deler = 2
2 × 5 × 11 × 13 × 29 =
82.940
samengestelde deler = 2
2 × 13 × 1.721 =
89.492
samengestelde deler = 5 × 11 × 1.721 =
94.655
samengestelde deler = 2
3 × 3 × 11 × 13 × 29 =
99.528
samengestelde deler = 2 × 29 × 1.721 =
99.818
samengestelde deler = 2
2 × 3 × 5 × 1.721 =
103.260
samengestelde deler = 5 × 13 × 1.721 =
111.865
samengestelde deler = 2 × 3 × 11 × 1.721 =
113.586
samengestelde deler = 2 × 3 × 5 × 11 × 13 × 29 =
124.410
samengestelde deler = 2 × 3 × 13 × 1.721 =
134.238
samengestelde deler = 3 × 29 × 1.721 =
149.727
samengestelde deler = 2
3 × 11 × 1.721 =
151.448
samengestelde deler = 2
3 × 5 × 11 × 13 × 29 =
165.880
samengestelde deler = 2
3 × 13 × 1.721 =
178.984
samengestelde deler = 2 × 5 × 11 × 1.721 =
189.310
samengestelde deler = 2
2 × 29 × 1.721 =
199.636
samengestelde deler = 2
3 × 3 × 5 × 1.721 =
206.520
samengestelde deler = 2 × 5 × 13 × 1.721 =
223.730
samengestelde deler = 2
2 × 3 × 11 × 1.721 =
227.172
samengestelde deler = 11 × 13 × 1.721 =
246.103
samengestelde deler = 2
2 × 3 × 5 × 11 × 13 × 29 =
248.820
samengestelde deler = 5 × 29 × 1.721 =
249.545
samengestelde deler = 2
2 × 3 × 13 × 1.721 =
268.476
samengestelde deler = 3 × 5 × 11 × 1.721 =
283.965
samengestelde deler = 2 × 3 × 29 × 1.721 =
299.454
samengestelde deler = 3 × 5 × 13 × 1.721 =
335.595
samengestelde deler = 2
2 × 5 × 11 × 1.721 =
378.620
samengestelde deler = 2
3 × 29 × 1.721 =
399.272
samengestelde deler = 2
2 × 5 × 13 × 1.721 =
447.460
samengestelde deler = 2
3 × 3 × 11 × 1.721 =
454.344
samengestelde deler = 2 × 11 × 13 × 1.721 =
492.206
samengestelde deler = 2
3 × 3 × 5 × 11 × 13 × 29 =
497.640
samengestelde deler = 2 × 5 × 29 × 1.721 =
499.090
samengestelde deler = 2
3 × 3 × 13 × 1.721 =
536.952
samengestelde deler = 11 × 29 × 1.721 =
548.999
samengestelde deler = 2 × 3 × 5 × 11 × 1.721 =
567.930
samengestelde deler = 2
2 × 3 × 29 × 1.721 =
598.908
samengestelde deler = 13 × 29 × 1.721 =
648.817
samengestelde deler = 2 × 3 × 5 × 13 × 1.721 =
671.190
samengestelde deler = 3 × 11 × 13 × 1.721 =
738.309
samengestelde deler = 3 × 5 × 29 × 1.721 =
748.635
samengestelde deler = 2
3 × 5 × 11 × 1.721 =
757.240
samengestelde deler = 2
3 × 5 × 13 × 1.721 =
894.920
samengestelde deler = 2
2 × 11 × 13 × 1.721 =
984.412
samengestelde deler = 2
2 × 5 × 29 × 1.721 =
998.180
samengestelde deler = 2 × 11 × 29 × 1.721 =
1.097.998
samengestelde deler = 2
2 × 3 × 5 × 11 × 1.721 =
1.135.860
samengestelde deler = 2
3 × 3 × 29 × 1.721 =
1.197.816
samengestelde deler = 5 × 11 × 13 × 1.721 =
1.230.515
samengestelde deler = 2 × 13 × 29 × 1.721 =
1.297.634
samengestelde deler = 2
2 × 3 × 5 × 13 × 1.721 =
1.342.380
samengestelde deler = 2 × 3 × 11 × 13 × 1.721 =
1.476.618
samengestelde deler = 2 × 3 × 5 × 29 × 1.721 =
1.497.270
samengestelde deler = 3 × 11 × 29 × 1.721 =
1.646.997
samengestelde deler = 3 × 13 × 29 × 1.721 =
1.946.451
samengestelde deler = 2
3 × 11 × 13 × 1.721 =
1.968.824
samengestelde deler = 2
3 × 5 × 29 × 1.721 =
1.996.360
samengestelde deler = 2
2 × 11 × 29 × 1.721 =
2.195.996
samengestelde deler = 2
3 × 3 × 5 × 11 × 1.721 =
2.271.720
samengestelde deler = 2 × 5 × 11 × 13 × 1.721 =
2.461.030
samengestelde deler = 2
2 × 13 × 29 × 1.721 =
2.595.268
samengestelde deler = 2
3 × 3 × 5 × 13 × 1.721 =
2.684.760
samengestelde deler = 5 × 11 × 29 × 1.721 =
2.744.995
samengestelde deler = 2
2 × 3 × 11 × 13 × 1.721 =
2.953.236
samengestelde deler = 2
2 × 3 × 5 × 29 × 1.721 =
2.994.540
samengestelde deler = 5 × 13 × 29 × 1.721 =
3.244.085
samengestelde deler = 2 × 3 × 11 × 29 × 1.721 =
3.293.994
samengestelde deler = 3 × 5 × 11 × 13 × 1.721 =
3.691.545
samengestelde deler = 2 × 3 × 13 × 29 × 1.721 =
3.892.902
samengestelde deler = 2
3 × 11 × 29 × 1.721 =
4.391.992
samengestelde deler = 2
2 × 5 × 11 × 13 × 1.721 =
4.922.060
samengestelde deler = 2
3 × 13 × 29 × 1.721 =
5.190.536
samengestelde deler = 2 × 5 × 11 × 29 × 1.721 =
5.489.990
samengestelde deler = 2
3 × 3 × 11 × 13 × 1.721 =
5.906.472
samengestelde deler = 2
3 × 3 × 5 × 29 × 1.721 =
5.989.080
samengestelde deler = 2 × 5 × 13 × 29 × 1.721 =
6.488.170
samengestelde deler = 2
2 × 3 × 11 × 29 × 1.721 =
6.587.988
samengestelde deler = 11 × 13 × 29 × 1.721 =
7.136.987
samengestelde deler = 2 × 3 × 5 × 11 × 13 × 1.721 =
7.383.090
samengestelde deler = 2
2 × 3 × 13 × 29 × 1.721 =
7.785.804
samengestelde deler = 3 × 5 × 11 × 29 × 1.721 =
8.234.985
samengestelde deler = 3 × 5 × 13 × 29 × 1.721 =
9.732.255
samengestelde deler = 2
3 × 5 × 11 × 13 × 1.721 =
9.844.120
samengestelde deler = 2
2 × 5 × 11 × 29 × 1.721 =
10.979.980
samengestelde deler = 2
2 × 5 × 13 × 29 × 1.721 =
12.976.340
samengestelde deler = 2
3 × 3 × 11 × 29 × 1.721 =
13.175.976
samengestelde deler = 2 × 11 × 13 × 29 × 1.721 =
14.273.974
samengestelde deler = 2
2 × 3 × 5 × 11 × 13 × 1.721 =
14.766.180
samengestelde deler = 2
3 × 3 × 13 × 29 × 1.721 =
15.571.608
samengestelde deler = 2 × 3 × 5 × 11 × 29 × 1.721 =
16.469.970
samengestelde deler = 2 × 3 × 5 × 13 × 29 × 1.721 =
19.464.510
samengestelde deler = 3 × 11 × 13 × 29 × 1.721 =
21.410.961
samengestelde deler = 2
3 × 5 × 11 × 29 × 1.721 =
21.959.960
samengestelde deler = 2
3 × 5 × 13 × 29 × 1.721 =
25.952.680
samengestelde deler = 2
2 × 11 × 13 × 29 × 1.721 =
28.547.948
samengestelde deler = 2
3 × 3 × 5 × 11 × 13 × 1.721 =
29.532.360
samengestelde deler = 2
2 × 3 × 5 × 11 × 29 × 1.721 =
32.939.940
samengestelde deler = 5 × 11 × 13 × 29 × 1.721 =
35.684.935
samengestelde deler = 2
2 × 3 × 5 × 13 × 29 × 1.721 =
38.929.020
samengestelde deler = 2 × 3 × 11 × 13 × 29 × 1.721 =
42.821.922
samengestelde deler = 2
3 × 11 × 13 × 29 × 1.721 =
57.095.896
samengestelde deler = 2
3 × 3 × 5 × 11 × 29 × 1.721 =
65.879.880
samengestelde deler = 2 × 5 × 11 × 13 × 29 × 1.721 =
71.369.870
samengestelde deler = 2
3 × 3 × 5 × 13 × 29 × 1.721 =
77.858.040
samengestelde deler = 2
2 × 3 × 11 × 13 × 29 × 1.721 =
85.643.844
samengestelde deler = 3 × 5 × 11 × 13 × 29 × 1.721 =
107.054.805
samengestelde deler = 2
2 × 5 × 11 × 13 × 29 × 1.721 =
142.739.740
samengestelde deler = 2
3 × 3 × 11 × 13 × 29 × 1.721 =
171.287.688
samengestelde deler = 2 × 3 × 5 × 11 × 13 × 29 × 1.721 =
214.109.610
samengestelde deler = 2
3 × 5 × 11 × 13 × 29 × 1.721 =
285.479.480
samengestelde deler = 2
2 × 3 × 5 × 11 × 13 × 29 × 1.721 =
428.219.220
samengestelde deler = 2
3 × 3 × 5 × 11 × 13 × 29 × 1.721 =
856.438.440
256 delers