20140220

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1571}}^1$

素因数の和:2221

約数の個数: 24

約数和(自身を含む): 42387408

約数和(自身を除く): 22247188

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 1571, 2564, 3142, 3205, 6284, 6410, 7855, 12820, 15710, 31420, 1007011, 2014022, 4028044, 5035055, 10070110, 20140220]

約数ペア:

[(1, 20140220), (2, 10070110), (4, 5035055), (5, 4028044), (10, 2014022), (20, 1007011), (641, 31420), (1282, 15710), (1571, 12820), (2564, 7855), (3142, 6410), (3205, 6284)]