20766815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2029}}^1$

素因数の和:2146

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 5541985

約数列:

[1, 5, 23, 89, 115, 445, 2029, 2047, 10145, 10235, 46667, 180581, 233335, 902905, 4153363, 20766815]

約数ペア:

[(1, 20766815), (5, 4153363), (23, 902905), (89, 233335), (115, 180581), (445, 46667), (2029, 10235), (2047, 10145)]