40641820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28621}}^1$

素因数の和:28701

約数の個数: 24

約数和(自身を含む): 86552928

約数和(自身を除く): 45911108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28621, 57242, 114484, 143105, 286210, 572420, 2032091, 4064182, 8128364, 10160455, 20320910, 40641820]

約数ペア:

[(1, 40641820), (2, 20320910), (4, 10160455), (5, 8128364), (10, 4064182), (20, 2032091), (71, 572420), (142, 286210), (284, 143105), (355, 114484), (710, 57242), (1420, 28621)]