20409530

素因数分解:

$2^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2089}}^1$

素因数の和:3073

約数の個数: 16

約数和(自身を含む): 36792360

約数和(自身を除く): 16382830

約数列:

[1, 2, 5, 10, 977, 1954, 2089, 4178, 4885, 9770, 10445, 20890, 2040953, 4081906, 10204765, 20409530]

約数ペア:

[(1, 20409530), (2, 10204765), (5, 4081906), (10, 2040953), (977, 20890), (1954, 10445), (2089, 9770), (4178, 4885)]