71319620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{45139}}^1$

素因数の和:45227

約数の個数: 24

約数和(自身を含む): 151670400

約数和(自身を除く): 80350780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 45139, 90278, 180556, 225695, 451390, 902780, 3565981, 7131962, 14263924, 17829905, 35659810, 71319620]

約数ペア:

[(1, 71319620), (2, 35659810), (4, 17829905), (5, 14263924), (10, 7131962), (20, 3565981), (79, 902780), (158, 451390), (316, 225695), (395, 180556), (790, 90278), (1580, 45139)]