205656980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{354581}}^1$

素因数の和:354619

約数の個数: 24

約数和(自身を含む): 446773320

約数和(自身を除く): 241116340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 354581, 709162, 1418324, 1772905, 3545810, 7091620, 10282849, 20565698, 41131396, 51414245, 102828490, 205656980]

約数ペア:

[(1, 205656980), (2, 102828490), (4, 51414245), (5, 41131396), (10, 20565698), (20, 10282849), (29, 7091620), (58, 3545810), (116, 1772905), (145, 1418324), (290, 709162), (580, 354581)]