205078040

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{37423}}^1$

素因数の和:37571

約数の個数: 32

約数和(自身を含む): 464806080

約数和(自身を除く): 259728040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 37423, 74846, 149692, 187115, 299384, 374230, 748460, 1496920, 5126951, 10253902, 20507804, 25634755, 41015608, 51269510, 102539020, 205078040]

約数ペア:

[(1, 205078040), (2, 102539020), (4, 51269510), (5, 41015608), (8, 25634755), (10, 20507804), (20, 10253902), (40, 5126951), (137, 1496920), (274, 748460), (548, 374230), (685, 299384), (1096, 187115), (1370, 149692), (2740, 74846), (5480, 37423)]