31381125

素因数分解:

$3^1\times 5^3\times {\mathrm{67}}^1\times {\mathrm{1249}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 53040000

約数和(自身を除く): 21658875

約数列:

[1, 3, 5, 15, 25, 67, 75, 125, 201, 335, 375, 1005, 1249, 1675, 3747, 5025, 6245, 8375, 18735, 25125, 31225, 83683, 93675, 156125, 251049, 418415, 468375, 1255245, 2092075, 6276225, 10460375, 31381125]

約数ペア:

[(1, 31381125), (3, 10460375), (5, 6276225), (15, 2092075), (25, 1255245), (67, 468375), (75, 418415), (125, 251049), (201, 156125), (335, 93675), (375, 83683), (1005, 31225), (1249, 25125), (1675, 18735), (3747, 8375), (5025, 6245)]