20409910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70379}}^1$

素因数の和:70415

約数の個数: 16

約数和(自身を含む): 38005200

約数和(自身を除く): 17595290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70379, 140758, 351895, 703790, 2040991, 4081982, 10204955, 20409910]

約数ペア:

[(1, 20409910), (2, 10204955), (5, 4081982), (10, 2040991), (29, 703790), (58, 351895), (145, 140758), (290, 70379)]