20785889280

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3253}}^1$

素因数の和:3304

約数の個数: 256

約数和(自身を含む): 71652299040

約数和(自身を除く): 50866409760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 768, 780, 832, 960, 1024, 1040, 1248, 1280, 1536, 1560, 1664, 1920, 2048, 2080, 2496, 2560, 3072, 3120, 3253, 3328, 3840, 4096, 4160, 4992, 5120, 6144, 6240, 6506, 6656, 7680, 8192, 8320, 9759, 9984, 10240, 12288, 12480, 13012, 13312, 15360, 16265, 16384, 16640, 19518, 19968, 20480, 24576, 24960, 26024, 26624, 30720, 32530, 32768, 33280, 39036, 39936, 40960, 42289, 48795, 49152, 49920, 52048, 53248, 61440, 65060, 66560, 78072, 79872, 81920, 84578, 97590, 98304, 99840, 104096, 106496, 122880, 126867, 130120, 133120, 156144, 159744, 163840, 169156, 195180, 199680, 208192, 211445, 212992, 245760, 253734, 260240, 266240, 312288, 319488, 338312, 390360, 399360, 416384, 422890, 425984, 491520, 507468, 520480, 532480, 624576, 634335, 638976, 676624, 780720, 798720, 832768, 845780, 1014936, 1040960, 1064960, 1249152, 1268670, 1277952, 1353248, 1561440, 1597440, 1665536, 1691560, 2029872, 2081920, 2129920, 2498304, 2537340, 2706496, 3122880, 3194880, 3331072, 3383120, 4059744, 4163840, 4996608, 5074680, 5412992, 6245760, 6389760, 6662144, 6766240, 8119488, 8327680, 9993216, 10149360, 10825984, 12491520, 13324288, 13532480, 16238976, 16655360, 19986432, 20298720, 21651968, 24983040, 26648576, 27064960, 32477952, 33310720, 39972864, 40597440, 43303936, 49966080, 53297152, 54129920, 64955904, 66621440, 79945728, 81194880, 86607872, 99932160, 106594304, 108259840, 129911808, 133242880, 159891456, 162389760, 173215744, 199864320, 216519680, 259823616, 266485760, 319782912, 324779520, 346431488, 399728640, 433039360, 519647232, 532971520, 649559040, 692862976, 799457280, 866078720, 1039294464, 1299118080, 1385725952, 1598914560, 1732157440, 2078588928, 2598236160, 3464314880, 4157177856, 5196472320, 6928629760, 10392944640, 20785889280]

約数ペア:

[(1, 20785889280), (2, 10392944640), (3, 6928629760), (4, 5196472320), (5, 4157177856), (6, 3464314880), (8, 2598236160), (10, 2078588928), (12, 1732157440), (13, 1598914560), (15, 1385725952), (16, 1299118080), (20, 1039294464), (24, 866078720), (26, 799457280), (30, 692862976), (32, 649559040), (39, 532971520), (40, 519647232), (48, 433039360), (52, 399728640), (60, 346431488), (64, 324779520), (65, 319782912), (78, 266485760), (80, 259823616), (96, 216519680), (104, 199864320), (120, 173215744), (128, 162389760), (130, 159891456), (156, 133242880), (160, 129911808), (192, 108259840), (195, 106594304), (208, 99932160), (240, 86607872), (256, 81194880), (260, 79945728), (312, 66621440), (320, 64955904), (384, 54129920), (390, 53297152), (416, 49966080), (480, 43303936), (512, 40597440), (520, 39972864), (624, 33310720), (640, 32477952), (768, 27064960), (780, 26648576), (832, 24983040), (960, 21651968), (1024, 20298720), (1040, 19986432), (1248, 16655360), (1280, 16238976), (1536, 13532480), (1560, 13324288), (1664, 12491520), (1920, 10825984), (2048, 10149360), (2080, 9993216), (2496, 8327680), (2560, 8119488), (3072, 6766240), (3120, 6662144), (3253, 6389760), (3328, 6245760), (3840, 5412992), (4096, 5074680), (4160, 4996608), (4992, 4163840), (5120, 4059744), (6144, 3383120), (6240, 3331072), (6506, 3194880), (6656, 3122880), (7680, 2706496), (8192, 2537340), (8320, 2498304), (9759, 2129920), (9984, 2081920), (10240, 2029872), (12288, 1691560), (12480, 1665536), (13012, 1597440), (13312, 1561440), (15360, 1353248), (16265, 1277952), (16384, 1268670), (16640, 1249152), (19518, 1064960), (19968, 1040960), (20480, 1014936), (24576, 845780), (24960, 832768), (26024, 798720), (26624, 780720), (30720, 676624), (32530, 638976), (32768, 634335), (33280, 624576), (39036, 532480), (39936, 520480), (40960, 507468), (42289, 491520), (48795, 425984), (49152, 422890), (49920, 416384), (52048, 399360), (53248, 390360), (61440, 338312), (65060, 319488), (66560, 312288), (78072, 266240), (79872, 260240), (81920, 253734), (84578, 245760), (97590, 212992), (98304, 211445), (99840, 208192), (104096, 199680), (106496, 195180), (122880, 169156), (126867, 163840), (130120, 159744), (133120, 156144)]