256447872

素因数分解:

$2^7\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 192

約数和(自身を含む): 784143360

約数和(自身を除く): 527695488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 43, 48, 62, 64, 72, 86, 93, 96, 124, 128, 129, 144, 167, 172, 186, 192, 248, 258, 279, 288, 334, 344, 372, 384, 387, 496, 501, 516, 558, 576, 668, 688, 744, 774, 992, 1002, 1032, 1116, 1152, 1333, 1336, 1376, 1488, 1503, 1548, 1984, 2004, 2064, 2232, 2666, 2672, 2752, 2976, 3006, 3096, 3968, 3999, 4008, 4128, 4464, 5177, 5332, 5344, 5504, 5952, 6012, 6192, 7181, 7998, 8016, 8256, 8928, 10354, 10664, 10688, 11904, 11997, 12024, 12384, 14362, 15531, 15996, 16032, 16512, 17856, 20708, 21328, 21376, 21543, 23994, 24048, 24768, 28724, 31062, 31992, 32064, 35712, 41416, 42656, 43086, 46593, 47988, 48096, 49536, 57448, 62124, 63984, 64128, 64629, 82832, 85312, 86172, 93186, 95976, 96192, 114896, 124248, 127968, 129258, 165664, 170624, 172344, 186372, 191952, 192384, 222611, 229792, 248496, 255936, 258516, 331328, 344688, 372744, 383904, 445222, 459584, 496992, 511872, 517032, 662656, 667833, 689376, 745488, 767808, 890444, 919168, 993984, 1034064, 1335666, 1378752, 1490976, 1535616, 1780888, 1987968, 2003499, 2068128, 2671332, 2757504, 2981952, 3561776, 4006998, 4136256, 5342664, 5963904, 7123552, 8013996, 8272512, 10685328, 14247104, 16027992, 21370656, 28494208, 32055984, 42741312, 64111968, 85482624, 128223936, 256447872]

約数ペア:

[(1, 256447872), (2, 128223936), (3, 85482624), (4, 64111968), (6, 42741312), (8, 32055984), (9, 28494208), (12, 21370656), (16, 16027992), (18, 14247104), (24, 10685328), (31, 8272512), (32, 8013996), (36, 7123552), (43, 5963904), (48, 5342664), (62, 4136256), (64, 4006998), (72, 3561776), (86, 2981952), (93, 2757504), (96, 2671332), (124, 2068128), (128, 2003499), (129, 1987968), (144, 1780888), (167, 1535616), (172, 1490976), (186, 1378752), (192, 1335666), (248, 1034064), (258, 993984), (279, 919168), (288, 890444), (334, 767808), (344, 745488), (372, 689376), (384, 667833), (387, 662656), (496, 517032), (501, 511872), (516, 496992), (558, 459584), (576, 445222), (668, 383904), (688, 372744), (744, 344688), (774, 331328), (992, 258516), (1002, 255936), (1032, 248496), (1116, 229792), (1152, 222611), (1333, 192384), (1336, 191952), (1376, 186372), (1488, 172344), (1503, 170624), (1548, 165664), (1984, 129258), (2004, 127968), (2064, 124248), (2232, 114896), (2666, 96192), (2672, 95976), (2752, 93186), (2976, 86172), (3006, 85312), (3096, 82832), (3968, 64629), (3999, 64128), (4008, 63984), (4128, 62124), (4464, 57448), (5177, 49536), (5332, 48096), (5344, 47988), (5504, 46593), (5952, 43086), (6012, 42656), (6192, 41416), (7181, 35712), (7998, 32064), (8016, 31992), (8256, 31062), (8928, 28724), (10354, 24768), (10664, 24048), (10688, 23994), (11904, 21543), (11997, 21376), (12024, 21328), (12384, 20708), (14362, 17856), (15531, 16512), (15996, 16032)]