28201768

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 34939352

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 71, 82, 142, 164, 173, 284, 287, 328, 346, 497, 568, 574, 692, 994, 1148, 1211, 1384, 1988, 2296, 2422, 2911, 3976, 4844, 5822, 7093, 9688, 11644, 12283, 14186, 20377, 23288, 24566, 28372, 40754, 49132, 49651, 56744, 81508, 85981, 98264, 99302, 163016, 171962, 198604, 343924, 397208, 503603, 687848, 1007206, 2014412, 3525221, 4028824, 7050442, 14100884, 28201768]

約数ペア:

[(1, 28201768), (2, 14100884), (4, 7050442), (7, 4028824), (8, 3525221), (14, 2014412), (28, 1007206), (41, 687848), (56, 503603), (71, 397208), (82, 343924), (142, 198604), (164, 171962), (173, 163016), (284, 99302), (287, 98264), (328, 85981), (346, 81508), (497, 56744), (568, 49651), (574, 49132), (692, 40754), (994, 28372), (1148, 24566), (1211, 23288), (1384, 20377), (1988, 14186), (2296, 12283), (2422, 11644), (2911, 9688), (3976, 7093), (4844, 5822)]