20270185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2861}}^1$

素因数の和:2988

約数の個数: 16

約数和(自身を含む): 26444880

約数和(自身を除く): 6174695

約数列:

[1, 5, 13, 65, 109, 545, 1417, 2861, 7085, 14305, 37193, 185965, 311849, 1559245, 4054037, 20270185]

約数ペア:

[(1, 20270185), (5, 4054037), (13, 1559245), (65, 311849), (109, 185965), (545, 37193), (1417, 14305), (2861, 7085)]