157820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 357504

約数和(自身を除く): 199684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 607, 1214, 2428, 3035, 6070, 7891, 12140, 15782, 31564, 39455, 78910, 157820]

約数ペア:

[(1, 157820), (2, 78910), (4, 39455), (5, 31564), (10, 15782), (13, 12140), (20, 7891), (26, 6070), (52, 3035), (65, 2428), (130, 1214), (260, 607)]