201565820

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{9871}}^1$

素因数の和:10901

約数の個数: 24

約数和(自身を含む): 423745728

約数和(自身を除く): 222179908

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 9871, 10210, 19742, 20420, 39484, 49355, 98710, 197420, 10078291, 20156582, 40313164, 50391455, 100782910, 201565820]

約数ペア:

[(1, 201565820), (2, 100782910), (4, 50391455), (5, 40313164), (10, 20156582), (20, 10078291), (1021, 197420), (2042, 98710), (4084, 49355), (5105, 39484), (9871, 20420), (10210, 19742)]