78328125

素因数分解:

$3^2\times 5^6\times {\mathrm{557}}^1$

素因数の和:593

約数の個数: 42

約数和(自身を含む): 141677874

約数和(自身を除く): 63349749

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 557, 625, 1125, 1671, 1875, 2785, 3125, 5013, 5625, 8355, 9375, 13925, 15625, 25065, 28125, 41775, 46875, 69625, 125325, 140625, 208875, 348125, 626625, 1044375, 1740625, 3133125, 5221875, 8703125, 15665625, 26109375, 78328125]

約数ペア:

[(1, 78328125), (3, 26109375), (5, 15665625), (9, 8703125), (15, 5221875), (25, 3133125), (45, 1740625), (75, 1044375), (125, 626625), (225, 348125), (375, 208875), (557, 140625), (625, 125325), (1125, 69625), (1671, 46875), (1875, 41775), (2785, 28125), (3125, 25065), (5013, 15625), (5625, 13925), (8355, 9375)]