20655125

素因数分解:

$5^3\times {\mathrm{149}}^1\times {\mathrm{1109}}^1$

素因数の和:1273

約数の個数: 16

約数和(自身を含む): 25974000

約数和(自身を除く): 5318875

約数列:

[1, 5, 25, 125, 149, 745, 1109, 3725, 5545, 18625, 27725, 138625, 165241, 826205, 4131025, 20655125]

約数ペア:

[(1, 20655125), (5, 4131025), (25, 826205), (125, 165241), (149, 138625), (745, 27725), (1109, 18625), (3725, 5545)]