40389305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{17911}}^1$

素因数の和:17968

約数の個数: 16

約数和(自身を含む): 54165888

約数和(自身を除く): 13776583

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 17911, 89555, 197021, 734351, 985105, 3671755, 8077861, 40389305]

約数ペア:

[(1, 40389305), (5, 8077861), (11, 3671755), (41, 985105), (55, 734351), (205, 197021), (451, 89555), (2255, 17911)]