81505705

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{1031}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 99517824

約数和(自身を除く): 18012119

約数列:

[1, 5, 97, 163, 485, 815, 1031, 5155, 15811, 79055, 100007, 168053, 500035, 840265, 16301141, 81505705]

約数ペア:

[(1, 81505705), (5, 16301141), (97, 840265), (163, 500035), (485, 168053), (815, 100007), (1031, 79055), (5155, 15811)]