2009160725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2543}}^1$

素因数の和:2607

約数の個数: 72

約数和(自身を含む): 3117336192

約数和(自身を除く): 1108175467

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 143, 169, 187, 221, 275, 325, 425, 715, 845, 935, 1105, 1859, 2431, 2543, 2873, 3575, 4225, 4675, 5525, 9295, 12155, 12715, 14365, 27973, 31603, 33059, 43231, 46475, 60775, 63575, 71825, 139865, 158015, 165295, 216155, 363649, 429767, 475541, 562003, 699325, 790075, 826475, 1080775, 1818245, 2148835, 2377705, 2810015, 4727437, 6182033, 7306039, 9091225, 10744175, 11888525, 14050075, 23637185, 30910165, 36530195, 80366429, 118185925, 154550825, 182650975, 401832145, 2009160725]

約数ペア:

[(1, 2009160725), (5, 401832145), (11, 182650975), (13, 154550825), (17, 118185925), (25, 80366429), (55, 36530195), (65, 30910165), (85, 23637185), (143, 14050075), (169, 11888525), (187, 10744175), (221, 9091225), (275, 7306039), (325, 6182033), (425, 4727437), (715, 2810015), (845, 2377705), (935, 2148835), (1105, 1818245), (1859, 1080775), (2431, 826475), (2543, 790075), (2873, 699325), (3575, 562003), (4225, 475541), (4675, 429767), (5525, 363649), (9295, 216155), (12155, 165295), (12715, 158015), (14365, 139865), (27973, 71825), (31603, 63575), (33059, 60775), (43231, 46475)]