20975065

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1033}}^1$

素因数の和:1200

約数の個数: 16

約数和(自身を含む): 26205696

約数和(自身を除く): 5230631

約数列:

[1, 5, 31, 131, 155, 655, 1033, 4061, 5165, 20305, 32023, 135323, 160115, 676615, 4195013, 20975065]

約数ペア:

[(1, 20975065), (5, 4195013), (31, 676615), (131, 160115), (155, 135323), (655, 32023), (1033, 20305), (4061, 5165)]