248766321

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 388177920

約数和(自身を除く): 139411599

約数列:

[1, 3, 17, 23, 29, 51, 69, 71, 87, 103, 213, 309, 391, 493, 667, 1173, 1207, 1479, 1633, 1751, 2001, 2059, 2369, 2987, 3621, 4899, 5253, 6177, 7107, 7313, 8961, 11339, 21939, 27761, 34017, 35003, 40273, 47357, 50779, 68701, 83283, 105009, 120819, 124321, 142071, 152337, 168199, 206103, 212077, 372963, 504597, 636231, 805069, 1167917, 2415207, 2859383, 3503751, 3605309, 4877771, 8578149, 10815927, 14633313, 82922107, 248766321]

約数ペア:

[(1, 248766321), (3, 82922107), (17, 14633313), (23, 10815927), (29, 8578149), (51, 4877771), (69, 3605309), (71, 3503751), (87, 2859383), (103, 2415207), (213, 1167917), (309, 805069), (391, 636231), (493, 504597), (667, 372963), (1173, 212077), (1207, 206103), (1479, 168199), (1633, 152337), (1751, 142071), (2001, 124321), (2059, 120819), (2369, 105009), (2987, 83283), (3621, 68701), (4899, 50779), (5253, 47357), (6177, 40273), (7107, 35003), (7313, 34017), (8961, 27761), (11339, 21939)]