20290460

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10459}}^1$

素因数の和:10565

約数の個数: 24

約数和(自身を含む): 43053360

約数和(自身を除く): 22762900

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10459, 20918, 41836, 52295, 104590, 209180, 1014523, 2029046, 4058092, 5072615, 10145230, 20290460]

約数ペア:

[(1, 20290460), (2, 10145230), (4, 5072615), (5, 4058092), (10, 2029046), (20, 1014523), (97, 209180), (194, 104590), (388, 52295), (485, 41836), (970, 20918), (1940, 10459)]