20656475575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{2131}}^1\times {\mathrm{20407}}^1$

素因数の和:22567

約数の個数: 24

約数和(自身を含む): 26976110720

約数和(自身を除く): 6319635145

約数列:

[1, 5, 19, 25, 95, 475, 2131, 10655, 20407, 40489, 53275, 102035, 202445, 387733, 510175, 1012225, 1938665, 9693325, 43487317, 217436585, 826259023, 1087182925, 4131295115, 20656475575]

約数ペア:

[(1, 20656475575), (5, 4131295115), (19, 1087182925), (25, 826259023), (95, 217436585), (475, 43487317), (2131, 9693325), (10655, 1938665), (20407, 1012225), (40489, 510175), (53275, 387733), (102035, 202445)]