12794562020

素因数分解:

$2^2\times 5^1\times {\mathrm{639728101}}^1$

素因数の和:639728110

約数の個数: 12

約数和(自身を含む): 26868580284

約数和(自身を除く): 14074018264

約数列:

[1, 2, 4, 5, 10, 20, 639728101, 1279456202, 2558912404, 3198640505, 6397281010, 12794562020]

約数ペア:

[(1, 12794562020), (2, 6397281010), (4, 3198640505), (5, 2558912404), (10, 1279456202), (20, 639728101)]