117820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 255024

約数和(自身を除く): 137204

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 548, 685, 860, 1370, 2740, 5891, 11782, 23564, 29455, 58910, 117820]

約数ペア:

[(1, 117820), (2, 58910), (4, 29455), (5, 23564), (10, 11782), (20, 5891), (43, 2740), (86, 1370), (137, 860), (172, 685), (215, 548), (274, 430)]