20599580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1478

約数の個数: 48

約数和(自身を含む): 46902240

約数和(自身を除く): 26302660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1409, 1462, 2818, 2924, 3655, 5636, 7045, 7310, 14090, 14620, 23953, 28180, 47906, 60587, 95812, 119765, 121174, 239530, 242348, 302935, 479060, 605870, 1029979, 1211740, 2059958, 4119916, 5149895, 10299790, 20599580]

約数ペア:

[(1, 20599580), (2, 10299790), (4, 5149895), (5, 4119916), (10, 2059958), (17, 1211740), (20, 1029979), (34, 605870), (43, 479060), (68, 302935), (85, 242348), (86, 239530), (170, 121174), (172, 119765), (215, 95812), (340, 60587), (430, 47906), (731, 28180), (860, 23953), (1409, 14620), (1462, 14090), (2818, 7310), (2924, 7045), (3655, 5636)]