628220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 1336608

約数和(自身を除く): 708388

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 311, 404, 505, 622, 1010, 1244, 1555, 2020, 3110, 6220, 31411, 62822, 125644, 157055, 314110, 628220]

約数ペア:

[(1, 628220), (2, 314110), (4, 157055), (5, 125644), (10, 62822), (20, 31411), (101, 6220), (202, 3110), (311, 2020), (404, 1555), (505, 1244), (622, 1010)]