81505355

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{1187}}^1$

素因数の和:1666

約数の個数: 16

約数和(自身を含む): 101274624

約数和(自身を除く): 19769269

約数列:

[1, 5, 31, 155, 443, 1187, 2215, 5935, 13733, 36797, 68665, 183985, 525841, 2629205, 16301071, 81505355]

約数ペア:

[(1, 81505355), (5, 16301071), (31, 2629205), (155, 525841), (443, 183985), (1187, 68665), (2215, 36797), (5935, 13733)]