9984375

素因数分解:

$3^2\times 5^6\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 42

約数和(自身を含む): 18281016

約数和(自身を除く): 8296641

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 355, 375, 625, 639, 1065, 1125, 1775, 1875, 3125, 3195, 5325, 5625, 8875, 9375, 15625, 15975, 26625, 28125, 44375, 46875, 79875, 133125, 140625, 221875, 399375, 665625, 1109375, 1996875, 3328125, 9984375]

約数ペア:

[(1, 9984375), (3, 3328125), (5, 1996875), (9, 1109375), (15, 665625), (25, 399375), (45, 221875), (71, 140625), (75, 133125), (125, 79875), (213, 46875), (225, 44375), (355, 28125), (375, 26625), (625, 15975), (639, 15625), (1065, 9375), (1125, 8875), (1775, 5625), (1875, 5325), (3125, 3195)]