28456890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 86704128

約数和(自身を除く): 58247238

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 97, 105, 110, 127, 154, 165, 194, 210, 231, 254, 291, 330, 381, 385, 462, 485, 582, 635, 679, 762, 770, 889, 970, 1067, 1155, 1270, 1358, 1397, 1455, 1778, 1905, 2037, 2134, 2310, 2667, 2794, 2910, 3201, 3395, 3810, 4074, 4191, 4445, 5334, 5335, 6402, 6790, 6985, 7469, 8382, 8890, 9779, 10185, 10670, 12319, 13335, 13970, 14938, 16005, 19558, 20370, 20955, 22407, 24638, 26670, 29337, 32010, 36957, 37345, 41910, 44814, 48895, 58674, 61595, 73914, 74690, 86233, 97790, 112035, 123190, 135509, 146685, 172466, 184785, 224070, 258699, 271018, 293370, 369570, 406527, 431165, 517398, 677545, 813054, 862330, 948563, 1293495, 1355090, 1897126, 2032635, 2586990, 2845689, 4065270, 4742815, 5691378, 9485630, 14228445, 28456890]

約数ペア:

[(1, 28456890), (2, 14228445), (3, 9485630), (5, 5691378), (6, 4742815), (7, 4065270), (10, 2845689), (11, 2586990), (14, 2032635), (15, 1897126), (21, 1355090), (22, 1293495), (30, 948563), (33, 862330), (35, 813054), (42, 677545), (55, 517398), (66, 431165), (70, 406527), (77, 369570), (97, 293370), (105, 271018), (110, 258699), (127, 224070), (154, 184785), (165, 172466), (194, 146685), (210, 135509), (231, 123190), (254, 112035), (291, 97790), (330, 86233), (381, 74690), (385, 73914), (462, 61595), (485, 58674), (582, 48895), (635, 44814), (679, 41910), (762, 37345), (770, 36957), (889, 32010), (970, 29337), (1067, 26670), (1155, 24638), (1270, 22407), (1358, 20955), (1397, 20370), (1455, 19558), (1778, 16005), (1905, 14938), (2037, 13970), (2134, 13335), (2310, 12319), (2667, 10670), (2794, 10185), (2910, 9779), (3201, 8890), (3395, 8382), (3810, 7469), (4074, 6985), (4191, 6790), (4445, 6402), (5334, 5335)]