39945820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14369}}^1$

素因数の和:14517

約数の個数: 24

約数和(自身を含む): 84495600

約数和(自身を除く): 44549780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 14369, 28738, 57476, 71845, 143690, 287380, 1997291, 3994582, 7989164, 9986455, 19972910, 39945820]

約数ペア:

[(1, 39945820), (2, 19972910), (4, 9986455), (5, 7989164), (10, 3994582), (20, 1997291), (139, 287380), (278, 143690), (556, 71845), (695, 57476), (1390, 28738), (2780, 14369)]