90871240

素因数分解:

$2^3\times 5^1\times {\mathrm{2271781}}^1$

素因数の和:2271792

約数の個数: 16

約数和(自身を含む): 204460380

約数和(自身を除く): 113589140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2271781, 4543562, 9087124, 11358905, 18174248, 22717810, 45435620, 90871240]

約数ペア:

[(1, 90871240), (2, 45435620), (4, 22717810), (5, 18174248), (8, 11358905), (10, 9087124), (20, 4543562), (40, 2271781)]