20256380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8963}}^1$

素因数の和:9085

約数の個数: 24

約数和(自身を含む): 42919632

約数和(自身を除く): 22663252

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8963, 17926, 35852, 44815, 89630, 179260, 1012819, 2025638, 4051276, 5064095, 10128190, 20256380]

約数ペア:

[(1, 20256380), (2, 10128190), (4, 5064095), (5, 4051276), (10, 2025638), (20, 1012819), (113, 179260), (226, 89630), (452, 44815), (565, 35852), (1130, 17926), (2260, 8963)]