15679240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3881}}^1$

素因数の和:3993

約数の個数: 32

約数和(自身を含む): 35636760

約数和(自身を除く): 19957520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 3881, 4040, 7762, 15524, 19405, 31048, 38810, 77620, 155240, 391981, 783962, 1567924, 1959905, 3135848, 3919810, 7839620, 15679240]

約数ペア:

[(1, 15679240), (2, 7839620), (4, 3919810), (5, 3135848), (8, 1959905), (10, 1567924), (20, 783962), (40, 391981), (101, 155240), (202, 77620), (404, 38810), (505, 31048), (808, 19405), (1010, 15524), (2020, 7762), (3881, 4040)]