51111775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2$

素因数の和:109

約数の個数: 72

約数和(自身を含む): 81651024

約数和(自身を除く): 30539249

約数列:

[1, 5, 11, 13, 17, 25, 29, 55, 65, 85, 143, 145, 187, 221, 275, 319, 325, 377, 425, 493, 715, 725, 841, 935, 1105, 1595, 1885, 2431, 2465, 3575, 4147, 4205, 4675, 5423, 5525, 6409, 7975, 9251, 9425, 10933, 12155, 12325, 14297, 20735, 21025, 27115, 32045, 46255, 54665, 60775, 70499, 71485, 103675, 120263, 135575, 157267, 160225, 185861, 231275, 273325, 352495, 357425, 601315, 786335, 929305, 1762475, 2044471, 3006575, 3931675, 4646525, 10222355, 51111775]

約数ペア:

[(1, 51111775), (5, 10222355), (11, 4646525), (13, 3931675), (17, 3006575), (25, 2044471), (29, 1762475), (55, 929305), (65, 786335), (85, 601315), (143, 357425), (145, 352495), (187, 273325), (221, 231275), (275, 185861), (319, 160225), (325, 157267), (377, 135575), (425, 120263), (493, 103675), (715, 71485), (725, 70499), (841, 60775), (935, 54665), (1105, 46255), (1595, 32045), (1885, 27115), (2431, 21025), (2465, 20735), (3575, 14297), (4147, 12325), (4205, 12155), (4675, 10933), (5423, 9425), (5525, 9251), (6409, 7975)]