81000125

素因数分解:

$5^3\times {\mathrm{149}}^1\times {\mathrm{4349}}^1$

素因数の和:4513

約数の個数: 16

約数和(自身を含む): 101790000

約数和(自身を除く): 20789875

約数列:

[1, 5, 25, 125, 149, 745, 3725, 4349, 18625, 21745, 108725, 543625, 648001, 3240005, 16200025, 81000125]

約数ペア:

[(1, 81000125), (5, 16200025), (25, 3240005), (125, 648001), (149, 543625), (745, 108725), (3725, 21745), (4349, 18625)]