161788390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{557891}}^1$

素因数の和:557927

約数の個数: 16

約数和(自身を含む): 301261680

約数和(自身を除く): 139473290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 557891, 1115782, 2789455, 5578910, 16178839, 32357678, 80894195, 161788390]

約数ペア:

[(1, 161788390), (2, 80894195), (5, 32357678), (10, 16178839), (29, 5578910), (58, 2789455), (145, 1115782), (290, 557891)]