28980567

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 57507840

約数和(自身を除く): 28527273

約数列:

[1, 3, 7, 9, 11, 19, 21, 31, 33, 57, 63, 71, 77, 93, 99, 133, 171, 209, 213, 217, 231, 279, 341, 399, 497, 589, 627, 639, 651, 693, 781, 1023, 1197, 1349, 1463, 1491, 1767, 1881, 1953, 2201, 2343, 2387, 3069, 4047, 4123, 4389, 4473, 5301, 5467, 6479, 6603, 7029, 7161, 9443, 12141, 12369, 13167, 14839, 15407, 16401, 19437, 19809, 21483, 24211, 28329, 37107, 41819, 44517, 45353, 46221, 49203, 58311, 72633, 84987, 103873, 125457, 133551, 136059, 138663, 169477, 217899, 292733, 311619, 376371, 408177, 460009, 508431, 878199, 934857, 1380027, 1525293, 2634597, 3220063, 4140081, 9660189, 28980567]

約数ペア:

[(1, 28980567), (3, 9660189), (7, 4140081), (9, 3220063), (11, 2634597), (19, 1525293), (21, 1380027), (31, 934857), (33, 878199), (57, 508431), (63, 460009), (71, 408177), (77, 376371), (93, 311619), (99, 292733), (133, 217899), (171, 169477), (209, 138663), (213, 136059), (217, 133551), (231, 125457), (279, 103873), (341, 84987), (399, 72633), (497, 58311), (589, 49203), (627, 46221), (639, 45353), (651, 44517), (693, 41819), (781, 37107), (1023, 28329), (1197, 24211), (1349, 21483), (1463, 19809), (1491, 19437), (1767, 16401), (1881, 15407), (1953, 14839), (2201, 13167), (2343, 12369), (2387, 12141), (3069, 9443), (4047, 7161), (4123, 7029), (4389, 6603), (4473, 6479), (5301, 5467)]