201520925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3881}}^1$

素因数の和:3989

約数の個数: 24

約数和(自身を含む): 261864192

約数和(自身を除く): 60343267

約数列:

[1, 5, 25, 31, 67, 155, 335, 775, 1675, 2077, 3881, 10385, 19405, 51925, 97025, 120311, 260027, 601555, 1300135, 3007775, 6500675, 8060837, 40304185, 201520925]

約数ペア:

[(1, 201520925), (5, 40304185), (25, 8060837), (31, 6500675), (67, 3007775), (155, 1300135), (335, 601555), (775, 260027), (1675, 120311), (2077, 97025), (3881, 51925), (10385, 19405)]