20804008

素因数分解:

$2^3\times {\mathrm{461}}^1\times {\mathrm{5641}}^1$

素因数の和:6108

約数の個数: 16

約数和(自身を含む): 39099060

約数和(自身を除く): 18295052

約数列:

[1, 2, 4, 8, 461, 922, 1844, 3688, 5641, 11282, 22564, 45128, 2600501, 5201002, 10402004, 20804008]

約数ペア:

[(1, 20804008), (2, 10402004), (4, 5201002), (8, 2600501), (461, 45128), (922, 22564), (1844, 11282), (3688, 5641)]