257280408

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 256

約数和(自身を含む): 921600000

約数和(自身を除く): 664319592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 31, 33, 36, 42, 44, 54, 56, 62, 63, 66, 72, 77, 84, 88, 93, 99, 108, 124, 126, 132, 154, 168, 186, 189, 198, 216, 217, 231, 248, 252, 264, 279, 297, 308, 341, 372, 378, 396, 434, 462, 499, 504, 558, 594, 616, 651, 682, 693, 744, 756, 792, 837, 868, 924, 998, 1023, 1116, 1188, 1302, 1364, 1386, 1497, 1512, 1674, 1736, 1848, 1953, 1996, 2046, 2079, 2232, 2376, 2387, 2604, 2728, 2772, 2994, 3069, 3348, 3493, 3906, 3992, 4092, 4158, 4491, 4774, 5208, 5489, 5544, 5859, 5988, 6138, 6696, 6986, 7161, 7812, 8184, 8316, 8982, 9207, 9548, 10479, 10978, 11718, 11976, 12276, 13473, 13972, 14322, 15469, 15624, 16467, 16632, 17964, 18414, 19096, 20958, 21483, 21956, 23436, 24552, 26946, 27944, 28644, 30938, 31437, 32934, 35928, 36828, 38423, 41916, 42966, 43912, 46407, 46872, 49401, 53892, 57288, 61876, 62874, 64449, 65868, 73656, 76846, 83832, 85932, 92814, 94311, 98802, 107784, 108283, 115269, 123752, 125748, 128898, 131736, 139221, 148203, 153692, 170159, 171864, 185628, 188622, 197604, 216566, 230538, 251496, 257796, 278442, 296406, 307384, 324849, 340318, 345807, 371256, 377244, 395208, 417663, 433132, 461076, 510477, 515592, 556884, 592812, 649698, 680636, 691614, 754488, 835326, 866264, 922152, 974547, 1020954, 1037421, 1113768, 1185624, 1191113, 1299396, 1361272, 1383228, 1531431, 1670652, 1949094, 2041908, 2074842, 2382226, 2598792, 2766456, 2923641, 3062862, 3341304, 3573339, 3898188, 4083816, 4149684, 4594293, 4764452, 5847282, 6125724, 7146678, 7796376, 8299368, 9188586, 9528904, 10720017, 11694564, 12251448, 14293356, 18377172, 21440034, 23389128, 28586712, 32160051, 36754344, 42880068, 64320102, 85760136, 128640204, 257280408]

約数ペア:

[(1, 257280408), (2, 128640204), (3, 85760136), (4, 64320102), (6, 42880068), (7, 36754344), (8, 32160051), (9, 28586712), (11, 23389128), (12, 21440034), (14, 18377172), (18, 14293356), (21, 12251448), (22, 11694564), (24, 10720017), (27, 9528904), (28, 9188586), (31, 8299368), (33, 7796376), (36, 7146678), (42, 6125724), (44, 5847282), (54, 4764452), (56, 4594293), (62, 4149684), (63, 4083816), (66, 3898188), (72, 3573339), (77, 3341304), (84, 3062862), (88, 2923641), (93, 2766456), (99, 2598792), (108, 2382226), (124, 2074842), (126, 2041908), (132, 1949094), (154, 1670652), (168, 1531431), (186, 1383228), (189, 1361272), (198, 1299396), (216, 1191113), (217, 1185624), (231, 1113768), (248, 1037421), (252, 1020954), (264, 974547), (279, 922152), (297, 866264), (308, 835326), (341, 754488), (372, 691614), (378, 680636), (396, 649698), (434, 592812), (462, 556884), (499, 515592), (504, 510477), (558, 461076), (594, 433132), (616, 417663), (651, 395208), (682, 377244), (693, 371256), (744, 345807), (756, 340318), (792, 324849), (837, 307384), (868, 296406), (924, 278442), (998, 257796), (1023, 251496), (1116, 230538), (1188, 216566), (1302, 197604), (1364, 188622), (1386, 185628), (1497, 171864), (1512, 170159), (1674, 153692), (1736, 148203), (1848, 139221), (1953, 131736), (1996, 128898), (2046, 125748), (2079, 123752), (2232, 115269), (2376, 108283), (2387, 107784), (2604, 98802), (2728, 94311), (2772, 92814), (2994, 85932), (3069, 83832), (3348, 76846), (3493, 73656), (3906, 65868), (3992, 64449), (4092, 62874), (4158, 61876), (4491, 57288), (4774, 53892), (5208, 49401), (5489, 46872), (5544, 46407), (5859, 43912), (5988, 42966), (6138, 41916), (6696, 38423), (6986, 36828), (7161, 35928), (7812, 32934), (8184, 31437), (8316, 30938), (8982, 28644), (9207, 27944), (9548, 26946), (10479, 24552), (10978, 23436), (11718, 21956), (11976, 21483), (12276, 20958), (13473, 19096), (13972, 18414), (14322, 17964), (15469, 16632), (15624, 16467)]