20478689280

素因数分解:

$2^{21}\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 528

約数和(自身を含む): 83751842304

約数和(自身を除く): 63273153024

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 64, 70, 72, 80, 84, 90, 93, 96, 105, 112, 120, 124, 126, 128, 140, 144, 155, 160, 168, 180, 186, 192, 210, 217, 224, 240, 248, 252, 256, 279, 280, 288, 310, 315, 320, 336, 360, 372, 384, 420, 434, 448, 465, 480, 496, 504, 512, 558, 560, 576, 620, 630, 640, 651, 672, 720, 744, 768, 840, 868, 896, 930, 960, 992, 1008, 1024, 1085, 1116, 1120, 1152, 1240, 1260, 1280, 1302, 1344, 1395, 1440, 1488, 1536, 1680, 1736, 1792, 1860, 1920, 1953, 1984, 2016, 2048, 2170, 2232, 2240, 2304, 2480, 2520, 2560, 2604, 2688, 2790, 2880, 2976, 3072, 3255, 3360, 3472, 3584, 3720, 3840, 3906, 3968, 4032, 4096, 4340, 4464, 4480, 4608, 4960, 5040, 5120, 5208, 5376, 5580, 5760, 5952, 6144, 6510, 6720, 6944, 7168, 7440, 7680, 7812, 7936, 8064, 8192, 8680, 8928, 8960, 9216, 9765, 9920, 10080, 10240, 10416, 10752, 11160, 11520, 11904, 12288, 13020, 13440, 13888, 14336, 14880, 15360, 15624, 15872, 16128, 16384, 17360, 17856, 17920, 18432, 19530, 19840, 20160, 20480, 20832, 21504, 22320, 23040, 23808, 24576, 26040, 26880, 27776, 28672, 29760, 30720, 31248, 31744, 32256, 32768, 34720, 35712, 35840, 36864, 39060, 39680, 40320, 40960, 41664, 43008, 44640, 46080, 47616, 49152, 52080, 53760, 55552, 57344, 59520, 61440, 62496, 63488, 64512, 65536, 69440, 71424, 71680, 73728, 78120, 79360, 80640, 81920, 83328, 86016, 89280, 92160, 95232, 98304, 104160, 107520, 111104, 114688, 119040, 122880, 124992, 126976, 129024, 131072, 138880, 142848, 143360, 147456, 156240, 158720, 161280, 163840, 166656, 172032, 178560, 184320, 190464, 196608, 208320, 215040, 222208, 229376, 238080, 245760, 249984, 253952, 258048, 262144, 277760, 285696, 286720, 294912, 312480, 317440, 322560, 327680, 333312, 344064, 357120, 368640, 380928, 393216, 416640, 430080, 444416, 458752, 476160, 491520, 499968, 507904, 516096, 524288, 555520, 571392, 573440, 589824, 624960, 634880, 645120, 655360, 666624, 688128, 714240, 737280, 761856, 786432, 833280, 860160, 888832, 917504, 952320, 983040, 999936, 1015808, 1032192, 1048576, 1111040, 1142784, 1146880, 1179648, 1249920, 1269760, 1290240, 1310720, 1333248, 1376256, 1428480, 1474560, 1523712, 1572864, 1666560, 1720320, 1777664, 1835008, 1904640, 1966080, 1999872, 2031616, 2064384, 2097152, 2222080, 2285568, 2293760, 2359296, 2499840, 2539520, 2580480, 2621440, 2666496, 2752512, 2856960, 2949120, 3047424, 3145728, 3333120, 3440640, 3555328, 3670016, 3809280, 3932160, 3999744, 4063232, 4128768, 4444160, 4571136, 4587520, 4718592, 4999680, 5079040, 5160960, 5242880, 5332992, 5505024, 5713920, 5898240, 6094848, 6291456, 6666240, 6881280, 7110656, 7340032, 7618560, 7864320, 7999488, 8126464, 8257536, 8888320, 9142272, 9175040, 9437184, 9999360, 10158080, 10321920, 10485760, 10665984, 11010048, 11427840, 11796480, 12189696, 13332480, 13762560, 14221312, 14680064, 15237120, 15728640, 15998976, 16252928, 16515072, 17776640, 18284544, 18350080, 18874368, 19998720, 20316160, 20643840, 21331968, 22020096, 22855680, 23592960, 24379392, 26664960, 27525120, 28442624, 30474240, 31457280, 31997952, 32505856, 33030144, 35553280, 36569088, 36700160, 39997440, 40632320, 41287680, 42663936, 44040192, 45711360, 47185920, 48758784, 53329920, 55050240, 56885248, 60948480, 63995904, 65011712, 66060288, 71106560, 73138176, 73400320, 79994880, 81264640, 82575360, 85327872, 91422720, 94371840, 97517568, 106659840, 110100480, 113770496, 121896960, 127991808, 132120576, 142213120, 146276352, 159989760, 162529280, 165150720, 170655744, 182845440, 195035136, 213319680, 220200960, 227540992, 243793920, 255983616, 284426240, 292552704, 319979520, 325058560, 330301440, 341311488, 365690880, 426639360, 455081984, 487587840, 511967232, 568852480, 585105408, 639959040, 660602880, 682622976, 731381760, 853278720, 975175680, 1023934464, 1137704960, 1279918080, 1365245952, 1462763520, 1706557440, 2047868928, 2275409920, 2559836160, 2925527040, 3413114880, 4095737856, 5119672320, 6826229760, 10239344640, 20478689280]

約数ペア:

[(1, 20478689280), (2, 10239344640), (3, 6826229760), (4, 5119672320), (5, 4095737856), (6, 3413114880), (7, 2925527040), (8, 2559836160), (9, 2275409920), (10, 2047868928), (12, 1706557440), (14, 1462763520), (15, 1365245952), (16, 1279918080), (18, 1137704960), (20, 1023934464), (21, 975175680), (24, 853278720), (28, 731381760), (30, 682622976), (31, 660602880), (32, 639959040), (35, 585105408), (36, 568852480), (40, 511967232), (42, 487587840), (45, 455081984), (48, 426639360), (56, 365690880), (60, 341311488), (62, 330301440), (63, 325058560), (64, 319979520), (70, 292552704), (72, 284426240), (80, 255983616), (84, 243793920), (90, 227540992), (93, 220200960), (96, 213319680), (105, 195035136), (112, 182845440), (120, 170655744), (124, 165150720), (126, 162529280), (128, 159989760), (140, 146276352), (144, 142213120), (155, 132120576), (160, 127991808), (168, 121896960), (180, 113770496), (186, 110100480), (192, 106659840), (210, 97517568), (217, 94371840), (224, 91422720), (240, 85327872), (248, 82575360), (252, 81264640), (256, 79994880), (279, 73400320), (280, 73138176), (288, 71106560), (310, 66060288), (315, 65011712), (320, 63995904), (336, 60948480), (360, 56885248), (372, 55050240), (384, 53329920), (420, 48758784), (434, 47185920), (448, 45711360), (465, 44040192), (480, 42663936), (496, 41287680), (504, 40632320), (512, 39997440), (558, 36700160), (560, 36569088), (576, 35553280), (620, 33030144), (630, 32505856), (640, 31997952), (651, 31457280), (672, 30474240), (720, 28442624), (744, 27525120), (768, 26664960), (840, 24379392), (868, 23592960), (896, 22855680), (930, 22020096), (960, 21331968), (992, 20643840), (1008, 20316160), (1024, 19998720), (1085, 18874368), (1116, 18350080), (1120, 18284544), (1152, 17776640), (1240, 16515072), (1260, 16252928), (1280, 15998976), (1302, 15728640), (1344, 15237120), (1395, 14680064), (1440, 14221312), (1488, 13762560), (1536, 13332480), (1680, 12189696), (1736, 11796480), (1792, 11427840), (1860, 11010048), (1920, 10665984), (1953, 10485760), (1984, 10321920), (2016, 10158080), (2048, 9999360), (2170, 9437184), (2232, 9175040), (2240, 9142272), (2304, 8888320), (2480, 8257536), (2520, 8126464), (2560, 7999488), (2604, 7864320), (2688, 7618560), (2790, 7340032), (2880, 7110656), (2976, 6881280), (3072, 6666240), (3255, 6291456), (3360, 6094848), (3472, 5898240), (3584, 5713920), (3720, 5505024), (3840, 5332992), (3906, 5242880), (3968, 5160960), (4032, 5079040), (4096, 4999680), (4340, 4718592), (4464, 4587520), (4480, 4571136), (4608, 4444160), (4960, 4128768), (5040, 4063232), (5120, 3999744), (5208, 3932160), (5376, 3809280), (5580, 3670016), (5760, 3555328), (5952, 3440640), (6144, 3333120), (6510, 3145728), (6720, 3047424), (6944, 2949120), (7168, 2856960), (7440, 2752512), (7680, 2666496), (7812, 2621440), (7936, 2580480), (8064, 2539520), (8192, 2499840), (8680, 2359296), (8928, 2293760), (8960, 2285568), (9216, 2222080), (9765, 2097152), (9920, 2064384), (10080, 2031616), (10240, 1999872), (10416, 1966080), (10752, 1904640), (11160, 1835008), (11520, 1777664), (11904, 1720320), (12288, 1666560), (13020, 1572864), (13440, 1523712), (13888, 1474560), (14336, 1428480), (14880, 1376256), (15360, 1333248), (15624, 1310720), (15872, 1290240), (16128, 1269760), (16384, 1249920), (17360, 1179648), (17856, 1146880), (17920, 1142784), (18432, 1111040), (19530, 1048576), (19840, 1032192), (20160, 1015808), (20480, 999936), (20832, 983040), (21504, 952320), (22320, 917504), (23040, 888832), (23808, 860160), (24576, 833280), (26040, 786432), (26880, 761856), (27776, 737280), (28672, 714240), (29760, 688128), (30720, 666624), (31248, 655360), (31744, 645120), (32256, 634880), (32768, 624960), (34720, 589824), (35712, 573440), (35840, 571392), (36864, 555520), (39060, 524288), (39680, 516096), (40320, 507904), (40960, 499968), (41664, 491520), (43008, 476160), (44640, 458752), (46080, 444416), (47616, 430080), (49152, 416640), (52080, 393216), (53760, 380928), (55552, 368640), (57344, 357120), (59520, 344064), (61440, 333312), (62496, 327680), (63488, 322560), (64512, 317440), (65536, 312480), (69440, 294912), (71424, 286720), (71680, 285696), (73728, 277760), (78120, 262144), (79360, 258048), (80640, 253952), (81920, 249984), (83328, 245760), (86016, 238080), (89280, 229376), (92160, 222208), (95232, 215040), (98304, 208320), (104160, 196608), (107520, 190464), (111104, 184320), (114688, 178560), (119040, 172032), (122880, 166656), (124992, 163840), (126976, 161280), (129024, 158720), (131072, 156240), (138880, 147456), (142848, 143360)]