25515125

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 33606144

約数和(自身を除く): 8091019

約数列:

[1, 5, 25, 43, 47, 101, 125, 215, 235, 505, 1075, 1175, 2021, 2525, 4343, 4747, 5375, 5875, 10105, 12625, 21715, 23735, 50525, 108575, 118675, 204121, 252625, 542875, 593375, 1020605, 5103025, 25515125]

約数ペア:

[(1, 25515125), (5, 5103025), (25, 1020605), (43, 593375), (47, 542875), (101, 252625), (125, 204121), (215, 118675), (235, 108575), (505, 50525), (1075, 23735), (1175, 21715), (2021, 12625), (2525, 10105), (4343, 5875), (4747, 5375)]