523125

素因数分解:

$3^3\times 5^4\times {\mathrm{31}}^1$

素因数の和:60

約数の個数: 40

約数和(自身を含む): 999680

約数和(自身を除く): 476555

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 125, 135, 155, 225, 279, 375, 465, 625, 675, 775, 837, 1125, 1395, 1875, 2325, 3375, 3875, 4185, 5625, 6975, 11625, 16875, 19375, 20925, 34875, 58125, 104625, 174375, 523125]

約数ペア:

[(1, 523125), (3, 174375), (5, 104625), (9, 58125), (15, 34875), (25, 20925), (27, 19375), (31, 16875), (45, 11625), (75, 6975), (93, 5625), (125, 4185), (135, 3875), (155, 3375), (225, 2325), (279, 1875), (375, 1395), (465, 1125), (625, 837), (675, 775)]