90855640

素因数分解:

$2^3\times 5^1\times {\mathrm{2271391}}^1$

素因数の和:2271402

約数の個数: 16

約数和(自身を含む): 204425280

約数和(自身を除く): 113569640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2271391, 4542782, 9085564, 11356955, 18171128, 22713910, 45427820, 90855640]

約数ペア:

[(1, 90855640), (2, 45427820), (4, 22713910), (5, 18171128), (8, 11356955), (10, 9085564), (20, 4542782), (40, 2271391)]