2538640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2441}}^1$

素因数の和:2467

約数の個数: 40

約数和(自身を含む): 6358968

約数和(自身を除く): 3820328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2441, 4882, 9764, 12205, 19528, 24410, 31733, 39056, 48820, 63466, 97640, 126932, 158665, 195280, 253864, 317330, 507728, 634660, 1269320, 2538640]

約数ペア:

[(1, 2538640), (2, 1269320), (4, 634660), (5, 507728), (8, 317330), (10, 253864), (13, 195280), (16, 158665), (20, 126932), (26, 97640), (40, 63466), (52, 48820), (65, 39056), (80, 31733), (104, 24410), (130, 19528), (208, 12205), (260, 9764), (520, 4882), (1040, 2441)]