291227620

素因数分解:

$2^2\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{8461}}^1$

素因数の和:10191

約数の個数: 24

約数和(自身を含む): 612005688

約数和(自身を除く): 320778068

約数列:

[1, 2, 4, 5, 10, 20, 1721, 3442, 6884, 8461, 8605, 16922, 17210, 33844, 34420, 42305, 84610, 169220, 14561381, 29122762, 58245524, 72806905, 145613810, 291227620]

約数ペア:

[(1, 291227620), (2, 145613810), (4, 72806905), (5, 58245524), (10, 29122762), (20, 14561381), (1721, 169220), (3442, 84610), (6884, 42305), (8461, 34420), (8605, 33844), (16922, 17210)]