20542660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10589}}^1$

素因数の和:10695

約数の個数: 24

約数和(自身を含む): 43588440

約数和(自身を除く): 23045780

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10589, 21178, 42356, 52945, 105890, 211780, 1027133, 2054266, 4108532, 5135665, 10271330, 20542660]

約数ペア:

[(1, 20542660), (2, 10271330), (4, 5135665), (5, 4108532), (10, 2054266), (20, 1027133), (97, 211780), (194, 105890), (388, 52945), (485, 42356), (970, 21178), (1940, 10589)]