28717975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 43434720

約数和(自身を除く): 14716745

約数列:

[1, 5, 11, 13, 25, 29, 55, 65, 143, 145, 275, 277, 319, 325, 377, 715, 725, 1385, 1595, 1885, 3047, 3575, 3601, 4147, 6925, 7975, 8033, 9425, 15235, 18005, 20735, 39611, 40165, 76175, 88363, 90025, 103675, 104429, 198055, 200825, 441815, 522145, 990275, 1148719, 2209075, 2610725, 5743595, 28717975]

約数ペア:

[(1, 28717975), (5, 5743595), (11, 2610725), (13, 2209075), (25, 1148719), (29, 990275), (55, 522145), (65, 441815), (143, 200825), (145, 198055), (275, 104429), (277, 103675), (319, 90025), (325, 88363), (377, 76175), (715, 40165), (725, 39611), (1385, 20735), (1595, 18005), (1885, 15235), (3047, 9425), (3575, 8033), (3601, 7975), (4147, 6925)]