890277375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 1697439744

約数和(自身を除く): 807162369

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 43, 65, 75, 93, 125, 129, 137, 155, 195, 215, 325, 375, 403, 411, 465, 559, 645, 685, 775, 975, 1075, 1209, 1333, 1625, 1677, 1781, 2015, 2055, 2325, 2795, 3225, 3425, 3875, 3999, 4247, 4875, 5343, 5375, 5891, 6045, 6665, 8385, 8905, 10075, 10275, 11625, 12741, 13975, 16125, 17125, 17329, 17673, 19995, 21235, 26715, 29455, 30225, 33325, 41925, 44525, 50375, 51375, 51987, 55211, 63705, 69875, 76583, 86645, 88365, 99975, 106175, 133575, 147275, 151125, 165633, 166625, 182621, 209625, 222625, 229749, 259935, 276055, 318525, 382915, 433225, 441825, 499875, 530875, 547863, 667875, 736375, 828165, 913105, 1148745, 1299675, 1380275, 1592625, 1914575, 2166125, 2209125, 2374073, 2739315, 4140825, 4565525, 5743725, 6498375, 6901375, 7122219, 9572875, 11870365, 13696575, 20704125, 22827625, 28718625, 35611095, 59351825, 68482875, 178055475, 296759125, 890277375]

約数ペア:

[(1, 890277375), (3, 296759125), (5, 178055475), (13, 68482875), (15, 59351825), (25, 35611095), (31, 28718625), (39, 22827625), (43, 20704125), (65, 13696575), (75, 11870365), (93, 9572875), (125, 7122219), (129, 6901375), (137, 6498375), (155, 5743725), (195, 4565525), (215, 4140825), (325, 2739315), (375, 2374073), (403, 2209125), (411, 2166125), (465, 1914575), (559, 1592625), (645, 1380275), (685, 1299675), (775, 1148745), (975, 913105), (1075, 828165), (1209, 736375), (1333, 667875), (1625, 547863), (1677, 530875), (1781, 499875), (2015, 441825), (2055, 433225), (2325, 382915), (2795, 318525), (3225, 276055), (3425, 259935), (3875, 229749), (3999, 222625), (4247, 209625), (4875, 182621), (5343, 166625), (5375, 165633), (5891, 151125), (6045, 147275), (6665, 133575), (8385, 106175), (8905, 99975), (10075, 88365), (10275, 86645), (11625, 76583), (12741, 69875), (13975, 63705), (16125, 55211), (17125, 51987), (17329, 51375), (17673, 50375), (19995, 44525), (21235, 41925), (26715, 33325), (29455, 30225)]