31201875

素因数分解:

$3^3\times 5^4\times {\mathrm{43}}^2$

素因数の和:115

約数の個数: 60

約数和(自身を含む): 59137320

約数和(自身を除く): 27935445

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 215, 225, 375, 387, 625, 645, 675, 1075, 1125, 1161, 1849, 1875, 1935, 3225, 3375, 5375, 5547, 5625, 5805, 9245, 9675, 16125, 16641, 16875, 26875, 27735, 29025, 46225, 48375, 49923, 80625, 83205, 138675, 145125, 231125, 241875, 249615, 416025, 693375, 725625, 1155625, 1248075, 2080125, 3466875, 6240375, 10400625, 31201875]

約数ペア:

[(1, 31201875), (3, 10400625), (5, 6240375), (9, 3466875), (15, 2080125), (25, 1248075), (27, 1155625), (43, 725625), (45, 693375), (75, 416025), (125, 249615), (129, 241875), (135, 231125), (215, 145125), (225, 138675), (375, 83205), (387, 80625), (625, 49923), (645, 48375), (675, 46225), (1075, 29025), (1125, 27735), (1161, 26875), (1849, 16875), (1875, 16641), (1935, 16125), (3225, 9675), (3375, 9245), (5375, 5805), (5547, 5625)]