20565513340

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1518871}}^1$

素因数の和:1519557

約数の個数: 24

約数和(自身を含む): 43251399072

約数和(自身を除く): 22685885732

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 2708, 3385, 6770, 13540, 1518871, 3037742, 6075484, 7594355, 15188710, 30377420, 1028275667, 2056551334, 4113102668, 5141378335, 10282756670, 20565513340]

約数ペア:

[(1, 20565513340), (2, 10282756670), (4, 5141378335), (5, 4113102668), (10, 2056551334), (20, 1028275667), (677, 30377420), (1354, 15188710), (2708, 7594355), (3385, 6075484), (6770, 3037742), (13540, 1518871)]