72227180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25981}}^1$

素因数の和:26129

約数の個数: 24

約数和(自身を含む): 152774160

約数和(自身を除く): 80546980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 25981, 51962, 103924, 129905, 259810, 519620, 3611359, 7222718, 14445436, 18056795, 36113590, 72227180]

約数ペア:

[(1, 72227180), (2, 36113590), (4, 18056795), (5, 14445436), (10, 7222718), (20, 3611359), (139, 519620), (278, 259810), (556, 129905), (695, 103924), (1390, 51962), (2780, 25981)]