7839620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3881}}^1$

素因数の和:3991

約数の個数: 24

約数和(自身を含む): 16630488

約数和(自身を除く): 8790868

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 3881, 7762, 15524, 19405, 38810, 77620, 391981, 783962, 1567924, 1959905, 3919810, 7839620]

約数ペア:

[(1, 7839620), (2, 3919810), (4, 1959905), (5, 1567924), (10, 783962), (20, 391981), (101, 77620), (202, 38810), (404, 19405), (505, 15524), (1010, 7762), (2020, 3881)]