86435620

素因数分解:

$2^2\times 5^1\times {\mathrm{4321781}}^1$

素因数の和:4321790

約数の個数: 12

約数和(自身を含む): 181514844

約数和(自身を除く): 95079224

約数列:

[1, 2, 4, 5, 10, 20, 4321781, 8643562, 17287124, 21608905, 43217810, 86435620]

約数ペア:

[(1, 86435620), (2, 43217810), (4, 21608905), (5, 17287124), (10, 8643562), (20, 4321781)]