90555440

素因数分解:

$2^4\times 5^1\times {\mathrm{1131943}}^1$

素因数の和:1131956

約数の個数: 20

約数和(自身を含む): 210541584

約数和(自身を除く): 119986144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1131943, 2263886, 4527772, 5659715, 9055544, 11319430, 18111088, 22638860, 45277720, 90555440]

約数ペア:

[(1, 90555440), (2, 45277720), (4, 22638860), (5, 18111088), (8, 11319430), (10, 9055544), (16, 5659715), (20, 4527772), (40, 2263886), (80, 1131943)]