81281716

素因数分解:

$2^2\times {\mathrm{223}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 143829504

約数和(自身を除く): 62547788

約数列:

[1, 2, 4, 223, 293, 311, 446, 586, 622, 892, 1172, 1244, 65339, 69353, 91123, 130678, 138706, 182246, 261356, 277412, 364492, 20320429, 40640858, 81281716]

約数ペア:

[(1, 81281716), (2, 40640858), (4, 20320429), (223, 364492), (293, 277412), (311, 261356), (446, 182246), (586, 138706), (622, 130678), (892, 91123), (1172, 69353), (1244, 65339)]