810016820

素因数分解:

$2^2\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{38609}}^1$

素因数の和:39667

約数の個数: 24

約数和(自身を含む): 1702701000

約数和(自身を除く): 892684180

約数列:

[1, 2, 4, 5, 10, 20, 1049, 2098, 4196, 5245, 10490, 20980, 38609, 77218, 154436, 193045, 386090, 772180, 40500841, 81001682, 162003364, 202504205, 405008410, 810016820]

約数ペア:

[(1, 810016820), (2, 405008410), (4, 202504205), (5, 162003364), (10, 81001682), (20, 40500841), (1049, 772180), (2098, 386090), (4196, 193045), (5245, 154436), (10490, 77218), (20980, 38609)]