1618125

素因数分解:

$3^1\times 5^4\times {\mathrm{863}}^1$

素因数の和:886

約数の個数: 20

約数和(自身を含む): 2699136

約数和(自身を除く): 1081011

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 863, 1875, 2589, 4315, 12945, 21575, 64725, 107875, 323625, 539375, 1618125]

約数ペア:

[(1, 1618125), (3, 539375), (5, 323625), (15, 107875), (25, 64725), (75, 21575), (125, 12945), (375, 4315), (625, 2589), (863, 1875)]