90821240

素因数分解:

$2^3\times 5^1\times {\mathrm{2270531}}^1$

素因数の和:2270542

約数の個数: 16

約数和(自身を含む): 204347880

約数和(自身を除く): 113526640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2270531, 4541062, 9082124, 11352655, 18164248, 22705310, 45410620, 90821240]

約数ペア:

[(1, 90821240), (2, 45410620), (4, 22705310), (5, 18164248), (8, 11352655), (10, 9082124), (20, 4541062), (40, 2270531)]