20745123840

素因数分解:

$2^{11}\times 3^6\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 672

約数和(自身を含む): 85506351840

約数和(自身を除く): 64761228000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 243, 252, 256, 270, 280, 288, 315, 320, 324, 336, 360, 378, 384, 397, 405, 420, 432, 448, 480, 486, 504, 512, 540, 560, 567, 576, 630, 640, 648, 672, 720, 729, 756, 768, 794, 810, 840, 864, 896, 945, 960, 972, 1008, 1024, 1080, 1120, 1134, 1152, 1191, 1215, 1260, 1280, 1296, 1344, 1440, 1458, 1512, 1536, 1588, 1620, 1680, 1701, 1728, 1792, 1890, 1920, 1944, 1985, 2016, 2048, 2160, 2240, 2268, 2304, 2382, 2430, 2520, 2560, 2592, 2688, 2779, 2835, 2880, 2916, 3024, 3072, 3176, 3240, 3360, 3402, 3456, 3573, 3584, 3645, 3780, 3840, 3888, 3970, 4032, 4320, 4480, 4536, 4608, 4764, 4860, 5040, 5103, 5120, 5184, 5376, 5558, 5670, 5760, 5832, 5955, 6048, 6144, 6352, 6480, 6720, 6804, 6912, 7146, 7168, 7290, 7560, 7680, 7776, 7940, 8064, 8337, 8505, 8640, 8960, 9072, 9216, 9528, 9720, 10080, 10206, 10240, 10368, 10719, 10752, 11116, 11340, 11520, 11664, 11910, 12096, 12704, 12960, 13440, 13608, 13824, 13895, 14292, 14336, 14580, 15120, 15360, 15552, 15880, 16128, 16674, 17010, 17280, 17865, 17920, 18144, 18432, 19056, 19440, 20160, 20412, 20736, 21438, 21504, 22232, 22680, 23040, 23328, 23820, 24192, 25011, 25408, 25515, 25920, 26880, 27216, 27648, 27790, 28584, 29160, 30240, 30720, 31104, 31760, 32157, 32256, 33348, 34020, 34560, 35730, 35840, 36288, 38112, 38880, 40320, 40824, 41472, 41685, 42876, 43008, 44464, 45360, 46080, 46656, 47640, 48384, 50022, 50816, 51030, 51840, 53595, 53760, 54432, 55296, 55580, 57168, 58320, 60480, 62208, 63520, 64314, 64512, 66696, 68040, 69120, 71460, 71680, 72576, 75033, 76224, 77760, 80640, 81648, 82944, 83370, 85752, 88928, 90720, 92160, 93312, 95280, 96471, 96768, 100044, 101632, 102060, 103680, 107190, 107520, 108864, 111160, 114336, 116640, 120960, 124416, 125055, 127040, 128628, 129024, 133392, 136080, 138240, 142920, 145152, 150066, 152448, 155520, 160785, 161280, 163296, 165888, 166740, 171504, 177856, 181440, 186624, 190560, 192942, 193536, 200088, 203264, 204120, 207360, 214380, 215040, 217728, 222320, 225099, 228672, 233280, 241920, 248832, 250110, 254080, 257256, 266784, 272160, 276480, 285840, 289413, 290304, 300132, 304896, 311040, 321570, 322560, 326592, 333480, 343008, 355712, 362880, 373248, 375165, 381120, 385884, 387072, 400176, 406528, 408240, 414720, 428760, 435456, 444640, 450198, 457344, 466560, 482355, 483840, 497664, 500220, 508160, 514512, 533568, 544320, 571680, 578826, 580608, 600264, 609792, 622080, 643140, 645120, 653184, 666960, 675297, 686016, 711424, 725760, 746496, 750330, 762240, 771768, 800352, 813056, 816480, 829440, 857520, 870912, 889280, 900396, 914688, 933120, 964710, 967680, 1000440, 1016320, 1029024, 1067136, 1088640, 1125495, 1143360, 1157652, 1161216, 1200528, 1219584, 1244160, 1286280, 1306368, 1333920, 1350594, 1372032, 1422848, 1447065, 1451520, 1492992, 1500660, 1524480, 1543536, 1600704, 1632960, 1715040, 1741824, 1778560, 1800792, 1829376, 1866240, 1929420, 1935360, 2000880, 2025891, 2032640, 2058048, 2134272, 2177280, 2250990, 2286720, 2315304, 2401056, 2439168, 2488320, 2572560, 2612736, 2667840, 2701188, 2744064, 2845696, 2894130, 2903040, 3001320, 3048960, 3087072, 3201408, 3265920, 3376485, 3430080, 3483648, 3557120, 3601584, 3658752, 3732480, 3858840, 4001760, 4051782, 4065280, 4116096, 4268544, 4354560, 4501980, 4573440, 4630608, 4802112, 5145120, 5225472, 5335680, 5402376, 5488128, 5691392, 5788260, 5806080, 6002640, 6097920, 6174144, 6402816, 6531840, 6752970, 6860160, 7114240, 7203168, 7317504, 7464960, 7717680, 8003520, 8103564, 8232192, 8537088, 8709120, 9003960, 9146880, 9261216, 9604224, 10129455, 10290240, 10450944, 10671360, 10804752, 10976256, 11576520, 12005280, 12195840, 12348288, 12805632, 13063680, 13505940, 13720320, 14228480, 14406336, 15435360, 16007040, 16207128, 16464384, 17074176, 17418240, 18007920, 18293760, 18522432, 19208448, 20258910, 20580480, 21342720, 21609504, 21952512, 23153040, 24010560, 24696576, 25611264, 26127360, 27011880, 27440640, 28456960, 28812672, 30870720, 32014080, 32414256, 32928768, 36015840, 36587520, 37044864, 38416896, 40517820, 41160960, 42685440, 43219008, 46306080, 48021120, 49393152, 51222528, 52254720, 54023760, 54881280, 57625344, 61741440, 64028160, 64828512, 65857536, 72031680, 74089728, 76833792, 81035640, 82321920, 85370880, 86438016, 92612160, 96042240, 98786304, 108047520, 109762560, 115250688, 123482880, 128056320, 129657024, 144063360, 148179456, 153667584, 162071280, 164643840, 172876032, 185224320, 192084480, 197572608, 216095040, 230501376, 246965760, 256112640, 259314048, 288126720, 296358912, 324142560, 329287680, 345752064, 370448640, 384168960, 432190080, 461002752, 493931520, 518628096, 576253440, 592717824, 648285120, 691504128, 740897280, 768337920, 864380160, 987863040, 1037256192, 1152506880, 1296570240, 1383008256, 1481794560, 1728760320, 2074512384, 2305013760, 2593140480, 2963589120, 3457520640, 4149024768, 5186280960, 6915041280, 10372561920, 20745123840]

約数ペア:

[(1, 20745123840), (2, 10372561920), (3, 6915041280), (4, 5186280960), (5, 4149024768), (6, 3457520640), (7, 2963589120), (8, 2593140480), (9, 2305013760), (10, 2074512384), (12, 1728760320), (14, 1481794560), (15, 1383008256), (16, 1296570240), (18, 1152506880), (20, 1037256192), (21, 987863040), (24, 864380160), (27, 768337920), (28, 740897280), (30, 691504128), (32, 648285120), (35, 592717824), (36, 576253440), (40, 518628096), (42, 493931520), (45, 461002752), (48, 432190080), (54, 384168960), (56, 370448640), (60, 345752064), (63, 329287680), (64, 324142560), (70, 296358912), (72, 288126720), (80, 259314048), (81, 256112640), (84, 246965760), (90, 230501376), (96, 216095040), (105, 197572608), (108, 192084480), (112, 185224320), (120, 172876032), (126, 164643840), (128, 162071280), (135, 153667584), (140, 148179456), (144, 144063360), (160, 129657024), (162, 128056320), (168, 123482880), (180, 115250688), (189, 109762560), (192, 108047520), (210, 98786304), (216, 96042240), (224, 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13720320), (1536, 13505940), (1588, 13063680), (1620, 12805632), (1680, 12348288), (1701, 12195840), (1728, 12005280), (1792, 11576520), (1890, 10976256), (1920, 10804752), (1944, 10671360), (1985, 10450944), (2016, 10290240), (2048, 10129455), (2160, 9604224), (2240, 9261216), (2268, 9146880), (2304, 9003960), (2382, 8709120), (2430, 8537088), (2520, 8232192), (2560, 8103564), (2592, 8003520), (2688, 7717680), (2779, 7464960), (2835, 7317504), (2880, 7203168), (2916, 7114240), (3024, 6860160), (3072, 6752970), (3176, 6531840), (3240, 6402816), (3360, 6174144), (3402, 6097920), (3456, 6002640), (3573, 5806080), (3584, 5788260), (3645, 5691392), (3780, 5488128), (3840, 5402376), (3888, 5335680), (3970, 5225472), (4032, 5145120), (4320, 4802112), (4480, 4630608), (4536, 4573440), (4608, 4501980), (4764, 4354560), (4860, 4268544), (5040, 4116096), (5103, 4065280), (5120, 4051782), (5184, 4001760), (5376, 3858840), (5558, 3732480), (5670, 3658752), (5760, 3601584), (5832, 3557120), (5955, 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(19056, 1088640), (19440, 1067136), (20160, 1029024), (20412, 1016320), (20736, 1000440), (21438, 967680), (21504, 964710), (22232, 933120), (22680, 914688), (23040, 900396), (23328, 889280), (23820, 870912), (24192, 857520), (25011, 829440), (25408, 816480), (25515, 813056), (25920, 800352), (26880, 771768), (27216, 762240), (27648, 750330), (27790, 746496), (28584, 725760), (29160, 711424), (30240, 686016), (30720, 675297), (31104, 666960), (31760, 653184), (32157, 645120), (32256, 643140), (33348, 622080), (34020, 609792), (34560, 600264), (35730, 580608), (35840, 578826), (36288, 571680), (38112, 544320), (38880, 533568), (40320, 514512), (40824, 508160), (41472, 500220), (41685, 497664), (42876, 483840), (43008, 482355), (44464, 466560), (45360, 457344), (46080, 450198), (46656, 444640), (47640, 435456), (48384, 428760), (50022, 414720), (50816, 408240), (51030, 406528), (51840, 400176), (53595, 387072), (53760, 385884), (54432, 381120), (55296, 375165), (55580, 373248), (57168, 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