4047940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15569}}^1$

素因数の和:15591

約数の個数: 24

約数和(自身を含む): 9155160

約数和(自身を除く): 5107220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 15569, 31138, 62276, 77845, 155690, 202397, 311380, 404794, 809588, 1011985, 2023970, 4047940]

約数ペア:

[(1, 4047940), (2, 2023970), (4, 1011985), (5, 809588), (10, 404794), (13, 311380), (20, 202397), (26, 155690), (52, 77845), (65, 62276), (130, 31138), (260, 15569)]