20209900

素因数分解:

$2^2\times 5^2\times {\mathrm{202099}}^1$

素因数の和:202113

約数の個数: 18

約数和(自身を含む): 43855700

約数和(自身を除く): 23645800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202099, 404198, 808396, 1010495, 2020990, 4041980, 5052475, 10104950, 20209900]

約数ペア:

[(1, 20209900), (2, 10104950), (4, 5052475), (5, 4041980), (10, 2020990), (20, 1010495), (25, 808396), (50, 404198), (100, 202099)]