20654875

素因数分解:

$5^3\times {\mathrm{373}}^1\times {\mathrm{443}}^1$

素因数の和:831

約数の個数: 16

約数和(自身を含む): 25904736

約数和(自身を除く): 5249861

約数列:

[1, 5, 25, 125, 373, 443, 1865, 2215, 9325, 11075, 46625, 55375, 165239, 826195, 4130975, 20654875]

約数ペア:

[(1, 20654875), (5, 4130975), (25, 826195), (125, 165239), (373, 55375), (443, 46625), (1865, 11075), (2215, 9325)]