20080115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1103}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 26390016

約数和(自身を除く): 6309901

約数列:

[1, 5, 11, 55, 331, 1103, 1655, 3641, 5515, 12133, 18205, 60665, 365093, 1825465, 4016023, 20080115]

約数ペア:

[(1, 20080115), (5, 4016023), (11, 1825465), (55, 365093), (331, 60665), (1103, 18205), (1655, 12133), (3641, 5515)]