20721899520

素因数分解:

$2^{11}\times 3^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 960

約数和(自身を含む): 87904776960

約数和(自身を除く): 67182877440

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, 43, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 83, 84, 86, 90, 96, 105, 108, 112, 120, 126, 128, 129, 135, 140, 144, 160, 162, 166, 168, 172, 180, 189, 192, 210, 215, 216, 224, 240, 249, 252, 256, 258, 270, 280, 288, 301, 315, 320, 324, 332, 336, 344, 360, 378, 384, 387, 405, 415, 420, 430, 432, 448, 480, 498, 504, 512, 516, 540, 560, 567, 576, 581, 602, 630, 640, 645, 648, 664, 672, 688, 720, 747, 756, 768, 774, 810, 830, 840, 860, 864, 896, 903, 945, 960, 996, 1008, 1024, 1032, 1080, 1120, 1134, 1152, 1161, 1162, 1204, 1245, 1260, 1280, 1290, 1296, 1328, 1344, 1376, 1440, 1494, 1505, 1512, 1536, 1548, 1620, 1660, 1680, 1720, 1728, 1743, 1792, 1806, 1890, 1920, 1935, 1992, 2016, 2048, 2064, 2160, 2240, 2241, 2268, 2304, 2322, 2324, 2408, 2490, 2520, 2560, 2580, 2592, 2656, 2688, 2709, 2752, 2835, 2880, 2905, 2988, 3010, 3024, 3072, 3096, 3240, 3320, 3360, 3440, 3456, 3483, 3486, 3569, 3584, 3612, 3735, 3780, 3840, 3870, 3984, 4032, 4128, 4320, 4480, 4482, 4515, 4536, 4608, 4644, 4648, 4816, 4980, 5040, 5120, 5160, 5184, 5229, 5312, 5376, 5418, 5504, 5670, 5760, 5805, 5810, 5976, 6020, 6048, 6144, 6192, 6480, 6640, 6720, 6723, 6880, 6912, 6966, 6972, 7138, 7168, 7224, 7470, 7560, 7680, 7740, 7968, 8064, 8127, 8256, 8640, 8715, 8960, 8964, 9030, 9072, 9216, 9288, 9296, 9632, 9960, 10080, 10240, 10320, 10368, 10458, 10624, 10707, 10752, 10836, 11008, 11205, 11340, 11520, 11610, 11620, 11952, 12040, 12096, 12384, 12960, 13280, 13440, 13446, 13545, 13760, 13824, 13932, 13944, 14276, 14336, 14448, 14940, 15120, 15360, 15480, 15687, 15936, 16128, 16254, 16512, 17280, 17415, 17430, 17845, 17920, 17928, 18060, 18144, 18432, 18576, 18592, 19264, 19920, 20160, 20640, 20736, 20916, 21248, 21414, 21504, 21672, 22016, 22410, 22680, 23040, 23220, 23240, 23904, 24080, 24192, 24381, 24768, 24983, 25920, 26145, 26560, 26880, 26892, 27090, 27520, 27648, 27864, 27888, 28552, 28896, 29880, 30240, 30720, 30960, 31374, 31872, 32121, 32256, 32508, 33024, 33615, 34560, 34830, 34860, 35690, 35840, 35856, 36120, 36288, 37152, 37184, 38528, 39840, 40320, 40635, 41280, 41472, 41832, 42496, 42828, 43008, 43344, 44032, 44820, 45360, 46080, 46440, 46480, 47061, 47808, 48160, 48384, 48762, 49536, 49966, 51840, 52290, 53120, 53535, 53760, 53784, 54180, 55040, 55296, 55728, 55776, 57104, 57792, 59760, 60480, 61920, 62748, 63744, 64242, 64512, 65016, 66048, 67230, 69120, 69660, 69720, 71380, 71680, 71712, 72240, 72576, 74304, 74368, 74949, 77056, 78435, 79680, 80640, 81270, 82560, 82944, 83664, 84992, 85656, 86688, 88064, 89640, 90720, 92160, 92880, 92960, 94122, 95616, 96320, 96363, 96768, 97524, 99072, 99932, 103680, 104580, 106240, 107070, 107520, 107568, 108360, 110080, 111456, 111552, 114208, 115584, 119520, 120960, 121905, 123840, 124915, 125496, 127488, 128484, 129024, 130032, 132096, 134460, 138240, 139320, 139440, 142760, 143424, 144480, 145152, 148608, 148736, 149898, 154112, 156870, 159360, 160605, 161280, 162540, 165120, 165888, 167328, 169984, 171312, 173376, 179280, 181440, 185760, 185920, 188244, 191232, 192640, 192726, 193536, 195048, 198144, 199864, 207360, 209160, 212480, 214140, 215040, 215136, 216720, 220160, 222912, 223104, 224847, 228416, 231168, 235305, 239040, 241920, 243810, 247680, 249830, 250992, 254976, 256968, 260064, 264192, 268920, 276480, 278640, 278880, 285520, 286848, 288960, 289089, 290304, 297216, 297472, 299796, 308224, 313740, 318720, 321210, 322560, 325080, 330240, 334656, 342624, 346752, 358560, 362880, 371520, 371840, 374745, 376488, 382464, 385280, 385452, 387072, 390096, 396288, 399728, 414720, 418320, 424960, 428280, 430272, 433440, 440320, 445824, 446208, 449694, 456832, 462336, 470610, 478080, 481815, 483840, 487620, 495360, 499660, 501984, 509952, 513936, 520128, 537840, 557280, 557760, 571040, 573696, 577920, 578178, 580608, 594432, 594944, 599592, 616448, 627480, 637440, 642420, 645120, 650160, 660480, 669312, 674541, 685248, 693504, 717120, 725760, 743040, 743680, 749490, 752976, 764928, 770560, 770904, 780192, 792576, 799456, 829440, 836640, 849920, 856560, 860544, 866880, 891648, 892416, 899388, 913664, 924672, 941220, 956160, 963630, 967680, 975240, 990720, 999320, 1003968, 1027872, 1040256, 1075680, 1114560, 1115520, 1124235, 1142080, 1147392, 1155840, 1156356, 1161216, 1188864, 1189888, 1199184, 1254960, 1274880, 1284840, 1300320, 1320960, 1338624, 1349082, 1370496, 1387008, 1434240, 1445445, 1451520, 1486080, 1487360, 1498980, 1505952, 1529856, 1541120, 1541808, 1560384, 1598912, 1673280, 1713120, 1721088, 1733760, 1783296, 1784832, 1798776, 1827328, 1849344, 1882440, 1912320, 1927260, 1935360, 1950480, 1981440, 1998640, 2007936, 2023623, 2055744, 2080512, 2151360, 2229120, 2231040, 2248470, 2284160, 2294784, 2311680, 2312712, 2377728, 2398368, 2509920, 2549760, 2569680, 2600640, 2677248, 2698164, 2740992, 2774016, 2868480, 2890890, 2903040, 2972160, 2974720, 2997960, 3011904, 3082240, 3083616, 3120768, 3197824, 3346560, 3372705, 3426240, 3442176, 3467520, 3566592, 3569664, 3597552, 3654656, 3764880, 3824640, 3854520, 3900960, 3962880, 3997280, 4015872, 4047246, 4111488, 4161024, 4302720, 4458240, 4462080, 4496940, 4568320, 4589568, 4623360, 4625424, 4796736, 5019840, 5139360, 5201280, 5354496, 5396328, 5481984, 5548032, 5736960, 5781780, 5806080, 5944320, 5949440, 5995920, 6023808, 6167232, 6241536, 6395648, 6693120, 6745410, 6852480, 6884352, 6935040, 7133184, 7195104, 7309312, 7529760, 7649280, 7709040, 7801920, 7994560, 8031744, 8094492, 8222976, 8322048, 8605440, 8916480, 8924160, 8993880, 9136640, 9246720, 9250848, 9593472, 10039680, 10118115, 10278720, 10402560, 10708992, 10792656, 10963968, 11473920, 11563560, 11888640, 11991840, 12047616, 12334464, 12483072, 12791296, 13386240, 13490820, 13704960, 13768704, 13870080, 14390208, 15059520, 15418080, 15603840, 15989120, 16063488, 16188984, 16445952, 16644096, 17210880, 17832960, 17848320, 17987760, 18273280, 18501696, 19186944, 20079360, 20236230, 20557440, 20805120, 21585312, 21927936, 22947840, 23127120, 23983680, 24095232, 24668928, 24966144, 25582592, 26772480, 26981640, 27409920, 27740160, 28780416, 30119040, 30836160, 31207680, 31978240, 32126976, 32377968, 32891904, 34421760, 35665920, 35975520, 36546560, 37003392, 38373888, 40158720, 40472460, 41114880, 41610240, 43170624, 46254240, 47967360, 48190464, 49337856, 49932288, 51165184, 53544960, 53963280, 54819840, 57560832, 60238080, 61672320, 62415360, 63956480, 64755936, 65783808, 68843520, 71951040, 74006784, 76747776, 80317440, 80944920, 82229760, 83220480, 86341248, 92508480, 95934720, 96380928, 98675712, 107926560, 109639680, 115121664, 120476160, 123344640, 124830720, 127912960, 129511872, 143902080, 148013568, 153495552, 160634880, 161889840, 164459520, 172682496, 185016960, 191869440, 197351424, 215853120, 230243328, 240952320, 246689280, 249661440, 255825920, 259023744, 287804160, 296027136, 323779680, 328919040, 345364992, 370033920, 383738880, 431706240, 460486656, 481904640, 493378560, 518047488, 575608320, 592054272, 647559360, 690729984, 740067840, 767477760, 863412480, 986757120, 1036094976, 1151216640, 1295118720, 1381459968, 1480135680, 1726824960, 2072189952, 2302433280, 2590237440, 2960271360, 3453649920, 4144379904, 5180474880, 6907299840, 10360949760, 20721899520]

約数ペア:

[(1, 20721899520), (2, 10360949760), (3, 6907299840), (4, 5180474880), (5, 4144379904), (6, 3453649920), (7, 2960271360), (8, 2590237440), (9, 2302433280), (10, 2072189952), (12, 1726824960), (14, 1480135680), (15, 1381459968), (16, 1295118720), (18, 1151216640), (20, 1036094976), (21, 986757120), (24, 863412480), (27, 767477760), (28, 740067840), (30, 690729984), (32, 647559360), (35, 592054272), (36, 575608320), (40, 518047488), (42, 493378560), (43, 481904640), (45, 460486656), (48, 431706240), (54, 383738880), (56, 370033920), (60, 345364992), (63, 328919040), (64, 323779680), (70, 296027136), (72, 287804160), (80, 259023744), (81, 255825920), (83, 249661440), (84, 246689280), (86, 240952320), (90, 230243328), (96, 215853120), (105, 197351424), (108, 191869440), (112, 185016960), (120, 172682496), (126, 164459520), (128, 161889840), (129, 160634880), (135, 153495552), (140, 148013568), (144, 143902080), (160, 129511872), (162, 127912960), (166, 124830720), (168, 123344640), (172, 120476160), (180, 115121664), (189, 109639680), (192, 107926560), (210, 98675712), (215, 96380928), (216, 95934720), (224, 92508480), (240, 86341248), (249, 83220480), (252, 82229760), (256, 80944920), (258, 80317440), (270, 76747776), (280, 74006784), (288, 71951040), (301, 68843520), (315, 65783808), (320, 64755936), (324, 63956480), (332, 62415360), (336, 61672320), (344, 60238080), (360, 57560832), (378, 54819840), (384, 53963280), (387, 53544960), (405, 51165184), (415, 49932288), (420, 49337856), (430, 48190464), (432, 47967360), (448, 46254240), (480, 43170624), (498, 41610240), (504, 41114880), (512, 40472460), (516, 40158720), (540, 38373888), (560, 37003392), (567, 36546560), (576, 35975520), (581, 35665920), (602, 34421760), (630, 32891904), (640, 32377968), (645, 32126976), (648, 31978240), (664, 31207680), (672, 30836160), (688, 30119040), (720, 28780416), (747, 27740160), (756, 27409920), (768, 26981640), (774, 26772480), (810, 25582592), (830, 24966144), (840, 24668928), (860, 24095232), (864, 23983680), (896, 23127120), (903, 22947840), (945, 21927936), (960, 21585312), (996, 20805120), (1008, 20557440), (1024, 20236230), (1032, 20079360), (1080, 19186944), (1120, 18501696), (1134, 18273280), (1152, 17987760), (1161, 17848320), (1162, 17832960), (1204, 17210880), (1245, 16644096), (1260, 16445952), (1280, 16188984), (1290, 16063488), (1296, 15989120), (1328, 15603840), (1344, 15418080), (1376, 15059520), (1440, 14390208), (1494, 13870080), (1505, 13768704), (1512, 13704960), (1536, 13490820), (1548, 13386240), (1620, 12791296), (1660, 12483072), (1680, 12334464), (1720, 12047616), (1728, 11991840), (1743, 11888640), (1792, 11563560), (1806, 11473920), (1890, 10963968), (1920, 10792656), (1935, 10708992), (1992, 10402560), (2016, 10278720), (2048, 10118115), (2064, 10039680), (2160, 9593472), (2240, 9250848), (2241, 9246720), (2268, 9136640), (2304, 8993880), (2322, 8924160), (2324, 8916480), (2408, 8605440), (2490, 8322048), (2520, 8222976), (2560, 8094492), (2580, 8031744), (2592, 7994560), (2656, 7801920), (2688, 7709040), (2709, 7649280), (2752, 7529760), (2835, 7309312), (2880, 7195104), (2905, 7133184), (2988, 6935040), (3010, 6884352), (3024, 6852480), (3072, 6745410), (3096, 6693120), (3240, 6395648), (3320, 6241536), (3360, 6167232), (3440, 6023808), (3456, 5995920), (3483, 5949440), (3486, 5944320), (3569, 5806080), (3584, 5781780), (3612, 5736960), (3735, 5548032), (3780, 5481984), (3840, 5396328), (3870, 5354496), (3984, 5201280), (4032, 5139360), (4128, 5019840), (4320, 4796736), (4480, 4625424), (4482, 4623360), (4515, 4589568), (4536, 4568320), (4608, 4496940), (4644, 4462080), (4648, 4458240), (4816, 4302720), (4980, 4161024), (5040, 4111488), (5120, 4047246), (5160, 4015872), (5184, 3997280), (5229, 3962880), (5312, 3900960), (5376, 3854520), (5418, 3824640), (5504, 3764880), (5670, 3654656), (5760, 3597552), (5805, 3569664), (5810, 3566592), (5976, 3467520), (6020, 3442176), (6048, 3426240), (6144, 3372705), (6192, 3346560), (6480, 3197824), (6640, 3120768), (6720, 3083616), (6723, 3082240), (6880, 3011904), (6912, 2997960), (6966, 2974720), (6972, 2972160), (7138, 2903040), (7168, 2890890), (7224, 2868480), (7470, 2774016), (7560, 2740992), (7680, 2698164), (7740, 2677248), (7968, 2600640), (8064, 2569680), (8127, 2549760), (8256, 2509920), (8640, 2398368), (8715, 2377728), (8960, 2312712), (8964, 2311680), (9030, 2294784), (9072, 2284160), (9216, 2248470), (9288, 2231040), (9296, 2229120), (9632, 2151360), (9960, 2080512), (10080, 2055744), (10240, 2023623), (10320, 2007936), (10368, 1998640), (10458, 1981440), (10624, 1950480), (10707, 1935360), (10752, 1927260), (10836, 1912320), (11008, 1882440), (11205, 1849344), (11340, 1827328), (11520, 1798776), (11610, 1784832), (11620, 1783296), (11952, 1733760), (12040, 1721088), (12096, 1713120), (12384, 1673280), (12960, 1598912), (13280, 1560384), (13440, 1541808), (13446, 1541120), (13545, 1529856), (13760, 1505952), (13824, 1498980), (13932, 1487360), (13944, 1486080), (14276, 1451520), (14336, 1445445), (14448, 1434240), (14940, 1387008), (15120, 1370496), (15360, 1349082), (15480, 1338624), (15687, 1320960), (15936, 1300320), (16128, 1284840), (16254, 1274880), (16512, 1254960), (17280, 1199184), (17415, 1189888), (17430, 1188864), (17845, 1161216), (17920, 1156356), (17928, 1155840), (18060, 1147392), (18144, 1142080), (18432, 1124235), (18576, 1115520), (18592, 1114560), (19264, 1075680), (19920, 1040256), (20160, 1027872), (20640, 1003968), (20736, 999320), (20916, 990720), (21248, 975240), (21414, 967680), (21504, 963630), (21672, 956160), (22016, 941220), (22410, 924672), (22680, 913664), (23040, 899388), (23220, 892416), (23240, 891648), (23904, 866880), (24080, 860544), (24192, 856560), (24381, 849920), (24768, 836640), (24983, 829440), (25920, 799456), (26145, 792576), (26560, 780192), (26880, 770904), (26892, 770560), (27090, 764928), (27520, 752976), (27648, 749490), (27864, 743680), (27888, 743040), (28552, 725760), (28896, 717120), (29880, 693504), (30240, 685248), (30720, 674541), (30960, 669312), (31374, 660480), (31872, 650160), (32121, 645120), (32256, 642420), (32508, 637440), (33024, 627480), (33615, 616448), (34560, 599592), (34830, 594944), (34860, 594432), (35690, 580608), (35840, 578178), (35856, 577920), (36120, 573696), (36288, 571040), (37152, 557760), (37184, 557280), (38528, 537840), (39840, 520128), (40320, 513936), (40635, 509952), (41280, 501984), (41472, 499660), (41832, 495360), (42496, 487620), (42828, 483840), (43008, 481815), (43344, 478080), (44032, 470610), (44820, 462336), (45360, 456832), (46080, 449694), (46440, 446208), (46480, 445824), (47061, 440320), (47808, 433440), (48160, 430272), (48384, 428280), (48762, 424960), (49536, 418320), (49966, 414720), (51840, 399728), (52290, 396288), (53120, 390096), (53535, 387072), (53760, 385452), (53784, 385280), (54180, 382464), (55040, 376488), (55296, 374745), (55728, 371840), (55776, 371520), (57104, 362880), (57792, 358560), (59760, 346752), (60480, 342624), (61920, 334656), (62748, 330240), (63744, 325080), (64242, 322560), (64512, 321210), (65016, 318720), (66048, 313740), (67230, 308224), (69120, 299796), (69660, 297472), (69720, 297216), (71380, 290304), (71680, 289089), (71712, 288960), (72240, 286848), (72576, 285520), (74304, 278880), (74368, 278640), (74949, 276480), (77056, 268920), (78435, 264192), (79680, 260064), (80640, 256968), (81270, 254976), (82560, 250992), (82944, 249830), (83664, 247680), (84992, 243810), (85656, 241920), (86688, 239040), (88064, 235305), (89640, 231168), (90720, 228416), (92160, 224847), (92880, 223104), (92960, 222912), (94122, 220160), (95616, 216720), (96320, 215136), (96363, 215040), (96768, 214140), (97524, 212480), (99072, 209160), (99932, 207360), (103680, 199864), (104580, 198144), (106240, 195048), (107070, 193536), (107520, 192726), (107568, 192640), (108360, 191232), (110080, 188244), (111456, 185920), (111552, 185760), (114208, 181440), (115584, 179280), (119520, 173376), (120960, 171312), (121905, 169984), (123840, 167328), (124915, 165888), (125496, 165120), (127488, 162540), (128484, 161280), (129024, 160605), (130032, 159360), (132096, 156870), (134460, 154112), (138240, 149898), (139320, 148736), (139440, 148608), (142760, 145152), (143424, 144480)]