31193125

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{1721}}^1$

素因数の和:1770

約数の個数: 20

約数和(自身を含む): 40346460

約数和(自身を除く): 9153335

約数列:

[1, 5, 25, 29, 125, 145, 625, 725, 1721, 3625, 8605, 18125, 43025, 49909, 215125, 249545, 1075625, 1247725, 6238625, 31193125]

約数ペア:

[(1, 31193125), (5, 6238625), (25, 1247725), (29, 1075625), (125, 249545), (145, 215125), (625, 49909), (725, 43025), (1721, 18125), (3625, 8605)]