20429728

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:605

約数の個数: 48

約数和(自身を含む): 44319744

約数和(自身を除く): 23890016

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 127, 176, 254, 352, 457, 508, 914, 1016, 1397, 1828, 2032, 2794, 3656, 4064, 5027, 5588, 7312, 10054, 11176, 14624, 20108, 22352, 40216, 44704, 58039, 80432, 116078, 160864, 232156, 464312, 638429, 928624, 1276858, 1857248, 2553716, 5107432, 10214864, 20429728]

約数ペア:

[(1, 20429728), (2, 10214864), (4, 5107432), (8, 2553716), (11, 1857248), (16, 1276858), (22, 928624), (32, 638429), (44, 464312), (88, 232156), (127, 160864), (176, 116078), (254, 80432), (352, 58039), (457, 44704), (508, 40216), (914, 22352), (1016, 20108), (1397, 14624), (1828, 11176), (2032, 10054), (2794, 7312), (3656, 5588), (4064, 5027)]