20128870

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 37301472

約数和(自身を除く): 17172602

約数列:

[1, 2, 5, 10, 53, 106, 163, 233, 265, 326, 466, 530, 815, 1165, 1630, 2330, 8639, 12349, 17278, 24698, 37979, 43195, 61745, 75958, 86390, 123490, 189895, 379790, 2012887, 4025774, 10064435, 20128870]

約数ペア:

[(1, 20128870), (2, 10064435), (5, 4025774), (10, 2012887), (53, 379790), (106, 189895), (163, 123490), (233, 86390), (265, 75958), (326, 61745), (466, 43195), (530, 37979), (815, 24698), (1165, 17278), (1630, 12349), (2330, 8639)]