20646870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1301}}^1$

素因数の和:1357

約数の個数: 48

約数和(自身を含む): 51840432

約数和(自身を除く): 31193562

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 529, 690, 1058, 1301, 1587, 2602, 2645, 3174, 3903, 5290, 6505, 7806, 7935, 13010, 15870, 19515, 29923, 39030, 59846, 89769, 149615, 179538, 299230, 448845, 688229, 897690, 1376458, 2064687, 3441145, 4129374, 6882290, 10323435, 20646870]

約数ペア:

[(1, 20646870), (2, 10323435), (3, 6882290), (5, 4129374), (6, 3441145), (10, 2064687), (15, 1376458), (23, 897690), (30, 688229), (46, 448845), (69, 299230), (115, 179538), (138, 149615), (230, 89769), (345, 59846), (529, 39030), (690, 29923), (1058, 19515), (1301, 15870), (1587, 13010), (2602, 7935), (2645, 7806), (3174, 6505), (3903, 5290)]