28707020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18169}}^1$

素因数の和:18257

約数の個数: 24

約数和(自身を含む): 61051200

約数和(自身を除く): 32344180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 18169, 36338, 72676, 90845, 181690, 363380, 1435351, 2870702, 5741404, 7176755, 14353510, 28707020]

約数ペア:

[(1, 28707020), (2, 14353510), (4, 7176755), (5, 5741404), (10, 2870702), (20, 1435351), (79, 363380), (158, 181690), (316, 90845), (395, 72676), (790, 36338), (1580, 18169)]