864725620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3930571}}^1$

素因数の和:3930591

約数の個数: 24

約数和(自身を含む): 1981008288

約数和(自身を除く): 1116282668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3930571, 7861142, 15722284, 19652855, 39305710, 43236281, 78611420, 86472562, 172945124, 216181405, 432362810, 864725620]

約数ペア:

[(1, 864725620), (2, 432362810), (4, 216181405), (5, 172945124), (10, 86472562), (11, 78611420), (20, 43236281), (22, 39305710), (44, 19652855), (55, 15722284), (110, 7861142), (220, 3930571)]