20252875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 27031680

約数和(自身を除く): 6778805

約数列:

[1, 5, 25, 29, 37, 125, 145, 151, 185, 725, 755, 925, 1073, 3625, 3775, 4379, 4625, 5365, 5587, 18875, 21895, 26825, 27935, 109475, 134125, 139675, 162023, 547375, 698375, 810115, 4050575, 20252875]

約数ペア:

[(1, 20252875), (5, 4050575), (25, 810115), (29, 698375), (37, 547375), (125, 162023), (145, 139675), (151, 134125), (185, 109475), (725, 27935), (755, 26825), (925, 21895), (1073, 18875), (3625, 5587), (3775, 5365), (4379, 4625)]