249517820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{290137}}^1$

素因数の和:290189

約数の個数: 24

約数和(自身を含む): 536175024

約数和(自身を除く): 286657204

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 290137, 580274, 1160548, 1450685, 2901370, 5802740, 12475891, 24951782, 49903564, 62379455, 124758910, 249517820]

約数ペア:

[(1, 249517820), (2, 124758910), (4, 62379455), (5, 49903564), (10, 24951782), (20, 12475891), (43, 5802740), (86, 2901370), (172, 1450685), (215, 1160548), (430, 580274), (860, 290137)]