13304882020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{178781}}^1$

素因数の和:178912

約数の個数: 36

約数和(自身を含む): 28405956852

約数和(自身を除く): 15101074832

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3721, 7442, 14884, 18605, 37210, 74420, 178781, 357562, 715124, 893905, 1787810, 3575620, 10905641, 21811282, 43622564, 54528205, 109056410, 218112820, 665244101, 1330488202, 2660976404, 3326220505, 6652441010, 13304882020]

約数ペア:

[(1, 13304882020), (2, 6652441010), (4, 3326220505), (5, 2660976404), (10, 1330488202), (20, 665244101), (61, 218112820), (122, 109056410), (244, 54528205), (305, 43622564), (610, 21811282), (1220, 10905641), (3721, 3575620), (7442, 1787810), (14884, 893905), (18605, 715124), (37210, 357562), (74420, 178781)]