80666721

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3079}}^1$

素因数の和:3197

約数の個数: 24

約数和(自身を含む): 121080960

約数和(自身を除く): 40414239

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 2911, 3079, 8733, 9237, 26199, 27711, 126239, 218609, 378717, 655827, 1136151, 1967481, 8962969, 26888907, 80666721]

約数ペア:

[(1, 80666721), (3, 26888907), (9, 8962969), (41, 1967481), (71, 1136151), (123, 655827), (213, 378717), (369, 218609), (639, 126239), (2911, 27711), (3079, 26199), (8733, 9237)]