28885815

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 61890048

約数和(自身を除く): 33004233

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 81, 105, 115, 135, 161, 189, 207, 315, 345, 405, 443, 483, 567, 621, 805, 945, 1035, 1329, 1449, 1863, 2215, 2415, 2835, 3101, 3105, 3987, 4347, 6645, 7245, 9303, 9315, 10189, 11961, 13041, 15505, 19935, 21735, 27909, 30567, 35883, 46515, 50945, 59805, 65205, 71323, 83727, 91701, 139545, 152835, 179415, 213969, 251181, 275103, 356615, 418635, 458505, 641907, 825309, 1069845, 1255905, 1375515, 1925721, 3209535, 4126545, 5777163, 9628605, 28885815]

約数ペア:

[(1, 28885815), (3, 9628605), (5, 5777163), (7, 4126545), (9, 3209535), (15, 1925721), (21, 1375515), (23, 1255905), (27, 1069845), (35, 825309), (45, 641907), (63, 458505), (69, 418635), (81, 356615), (105, 275103), (115, 251181), (135, 213969), (161, 179415), (189, 152835), (207, 139545), (315, 91701), (345, 83727), (405, 71323), (443, 65205), (483, 59805), (567, 50945), (621, 46515), (805, 35883), (945, 30567), (1035, 27909), (1329, 21735), (1449, 19935), (1863, 15505), (2215, 13041), (2415, 11961), (2835, 10189), (3101, 9315), (3105, 9303), (3987, 7245), (4347, 6645)]