13078125

素因数分解:

$3^3\times 5^6\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 56

約数和(自身を含む): 24999680

約数和(自身を除く): 11921555

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, 3125, 3375, 3875, 4185, 5625, 6975, 9375, 11625, 15625, 16875, 19375, 20925, 28125, 34875, 46875, 58125, 84375, 96875, 104625, 140625, 174375, 290625, 421875, 484375, 523125, 871875, 1453125, 2615625, 4359375, 13078125]

約数ペア:

[(1, 13078125), (3, 4359375), (5, 2615625), (9, 1453125), (15, 871875), (25, 523125), (27, 484375), (31, 421875), (45, 290625), (75, 174375), (93, 140625), (125, 104625), (135, 96875), (155, 84375), (225, 58125), (279, 46875), (375, 34875), (465, 28125), (625, 20925), (675, 19375), (775, 16875), (837, 15625), (1125, 11625), (1395, 9375), (1875, 6975), (2325, 5625), (3125, 4185), (3375, 3875)]