28646325

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:124

約数の個数: 72

約数和(自身を含む): 55829760

約数和(自身を除く): 27183435

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 37, 45, 75, 93, 111, 135, 155, 185, 225, 279, 333, 465, 555, 675, 775, 837, 925, 999, 1147, 1369, 1395, 1665, 2325, 2775, 3441, 4107, 4185, 4995, 5735, 6845, 6975, 8325, 10323, 12321, 17205, 20535, 20925, 24975, 28675, 30969, 34225, 36963, 42439, 51615, 61605, 86025, 102675, 127317, 154845, 184815, 212195, 258075, 308025, 381951, 636585, 774225, 924075, 1060975, 1145853, 1909755, 3182925, 5729265, 9548775, 28646325]

約数ペア:

[(1, 28646325), (3, 9548775), (5, 5729265), (9, 3182925), (15, 1909755), (25, 1145853), (27, 1060975), (31, 924075), (37, 774225), (45, 636585), (75, 381951), (93, 308025), (111, 258075), (135, 212195), (155, 184815), (185, 154845), (225, 127317), (279, 102675), (333, 86025), (465, 61605), (555, 51615), (675, 42439), (775, 36963), (837, 34225), (925, 30969), (999, 28675), (1147, 24975), (1369, 20925), (1395, 20535), (1665, 17205), (2325, 12321), (2775, 10323), (3441, 8325), (4107, 6975), (4185, 6845), (4995, 5735)]