403125

素因数分解:

$3^1\times 5^5\times {\mathrm{43}}^1$

素因数の和:71

約数の個数: 24

約数和(自身を含む): 687456

約数和(自身を除く): 284331

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 375, 625, 645, 1075, 1875, 3125, 3225, 5375, 9375, 16125, 26875, 80625, 134375, 403125]

約数ペア:

[(1, 403125), (3, 134375), (5, 80625), (15, 26875), (25, 16125), (43, 9375), (75, 5375), (125, 3225), (129, 3125), (215, 1875), (375, 1075), (625, 645)]