20657387520

素因数分解:

$2^{11}\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 1152

約数和(自身を含む): 92726000640

約数和(自身を除く): 72068613120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 35, 36, 40, 41, 42, 44, 45, 48, 55, 56, 60, 63, 64, 66, 70, 71, 72, 77, 80, 82, 84, 88, 90, 96, 99, 105, 110, 112, 120, 123, 126, 128, 132, 140, 142, 144, 154, 160, 164, 165, 168, 176, 180, 192, 198, 205, 210, 213, 220, 224, 231, 240, 246, 252, 256, 264, 280, 284, 287, 288, 308, 315, 320, 328, 330, 336, 352, 355, 360, 369, 384, 385, 396, 410, 420, 426, 440, 448, 451, 462, 480, 492, 495, 497, 504, 512, 528, 560, 568, 574, 576, 615, 616, 630, 639, 640, 656, 660, 672, 693, 704, 710, 720, 738, 768, 770, 781, 792, 820, 840, 852, 861, 880, 896, 902, 924, 960, 984, 990, 994, 1008, 1024, 1056, 1065, 1120, 1136, 1148, 1152, 1155, 1230, 1232, 1260, 1278, 1280, 1312, 1320, 1344, 1353, 1386, 1408, 1420, 1435, 1440, 1476, 1491, 1536, 1540, 1562, 1584, 1640, 1680, 1704, 1722, 1760, 1792, 1804, 1845, 1848, 1920, 1968, 1980, 1988, 2016, 2048, 2112, 2130, 2240, 2255, 2272, 2296, 2304, 2310, 2343, 2460, 2464, 2485, 2520, 2556, 2560, 2583, 2624, 2640, 2688, 2706, 2772, 2816, 2840, 2870, 2880, 2911, 2952, 2982, 3072, 3080, 3124, 3157, 3168, 3195, 3280, 3360, 3408, 3444, 3465, 3520, 3584, 3608, 3690, 3696, 3840, 3905, 3936, 3960, 3976, 4032, 4059, 4224, 4260, 4305, 4473, 4480, 4510, 4544, 4592, 4608, 4620, 4686, 4920, 4928, 4970, 5040, 5112, 5120, 5166, 5248, 5280, 5376, 5412, 5467, 5544, 5632, 5680, 5740, 5760, 5822, 5904, 5964, 6144, 6160, 6248, 6314, 6336, 6390, 6560, 6720, 6765, 6816, 6888, 6930, 7029, 7040, 7168, 7216, 7380, 7392, 7455, 7680, 7810, 7872, 7920, 7952, 8064, 8118, 8448, 8520, 8610, 8733, 8946, 8960, 9020, 9088, 9184, 9216, 9240, 9372, 9471, 9840, 9856, 9940, 10080, 10224, 10240, 10332, 10496, 10560, 10752, 10824, 10934, 11088, 11264, 11360, 11480, 11520, 11644, 11715, 11808, 11928, 12320, 12496, 12628, 12672, 12780, 12915, 13120, 13440, 13530, 13632, 13776, 13860, 14058, 14080, 14336, 14432, 14555, 14760, 14784, 14910, 15360, 15620, 15744, 15785, 15840, 15904, 16128, 16236, 16401, 16896, 17040, 17220, 17466, 17892, 17920, 18040, 18176, 18368, 18432, 18480, 18744, 18942, 19680, 19712, 19880, 20160, 20295, 20377, 20448, 20664, 20992, 21120, 21504, 21648, 21868, 22176, 22365, 22528, 22720, 22960, 23040, 23288, 23430, 23616, 23856, 24640, 24992, 25256, 25344, 25560, 25830, 26199, 26240, 26880, 27060, 27264, 27335, 27552, 27720, 28116, 28160, 28413, 28864, 29110, 29520, 29568, 29820, 30720, 31240, 31488, 31570, 31680, 31808, 32021, 32256, 32472, 32802, 33792, 34080, 34440, 34932, 35145, 35784, 35840, 36080, 36352, 36736, 36960, 37488, 37884, 39360, 39424, 39760, 40320, 40590, 40754, 40896, 41328, 41984, 42240, 43008, 43296, 43665, 43736, 44352, 44730, 45440, 45920, 46080, 46576, 46860, 47232, 47355, 47712, 49203, 49280, 49984, 50512, 50688, 51120, 51660, 52398, 52480, 53760, 54120, 54528, 54670, 55104, 55440, 56232, 56320, 56826, 57728, 58220, 59040, 59136, 59640, 61131, 62480, 62976, 63140, 63360, 63616, 64042, 64512, 64944, 65604, 67584, 68160, 68880, 69864, 70290, 71568, 71680, 72160, 72704, 73472, 73920, 74976, 75768, 78720, 78848, 79520, 80640, 81180, 81508, 81792, 82005, 82656, 83968, 84480, 86592, 87330, 87472, 88704, 89460, 90880, 91840, 92160, 93152, 93720, 94464, 94710, 95424, 96063, 98406, 98560, 99968, 101024, 101376, 101885, 102240, 103320, 104796, 104960, 107520, 108240, 109056, 109340, 110208, 110880, 112464, 112640, 113652, 115456, 116440, 118080, 118272, 119280, 122262, 124960, 125952, 126280, 126720, 127232, 128084, 129024, 129888, 130995, 131208, 136320, 137760, 139728, 140580, 142065, 143136, 144320, 145408, 146944, 147840, 149952, 151536, 157440, 157696, 159040, 160105, 161280, 162360, 163016, 163584, 164010, 165312, 168960, 173184, 174660, 174944, 177408, 178920, 181760, 183393, 183680, 186304, 187440, 188928, 189420, 190848, 192126, 196812, 197120, 199936, 202048, 202752, 203770, 204480, 206640, 209592, 209920, 215040, 216480, 218112, 218680, 220416, 221760, 224147, 224928, 227304, 230912, 232880, 236160, 236544, 238560, 244524, 246015, 249920, 251904, 252560, 253440, 254464, 256168, 259776, 261990, 262416, 272640, 275520, 279456, 281160, 284130, 286272, 288189, 288640, 293888, 295680, 299904, 303072, 305655, 314880, 318080, 320210, 322560, 324720, 326032, 327168, 328020, 330624, 337920, 346368, 349320, 349888, 354816, 357840, 363520, 366786, 367360, 372608, 374880, 377856, 378840, 381696, 384252, 393624, 394240, 399872, 404096, 407540, 408960, 413280, 419184, 419840, 432960, 436224, 437360, 440832, 443520, 448294, 449856, 454608, 461824, 465760, 472320, 473088, 477120, 480315, 489048, 492030, 499840, 505120, 506880, 508928, 512336, 519552, 523980, 524832, 545280, 551040, 558912, 562320, 568260, 572544, 576378, 577280, 587776, 591360, 599808, 606144, 611310, 629760, 636160, 640420, 645120, 649440, 652064, 654336, 656040, 661248, 672441, 692736, 698640, 699776, 709632, 715680, 727040, 733572, 734720, 745216, 749760, 755712, 757680, 763392, 768504, 787248, 788480, 799744, 808192, 815080, 817920, 826560, 838368, 865920, 874720, 881664, 887040, 896588, 899712, 909216, 916965, 923648, 931520, 944640, 954240, 960630, 978096, 984060, 999680, 1010240, 1013760, 1017856, 1024672, 1039104, 1047960, 1049664, 1090560, 1102080, 1117824, 1120735, 1124640, 1136520, 1145088, 1152756, 1154560, 1182720, 1199616, 1212288, 1222620, 1259520, 1272320, 1280840, 1298880, 1304128, 1308672, 1312080, 1322496, 1344882, 1385472, 1397280, 1399552, 1419264, 1431360, 1440945, 1467144, 1469440, 1490432, 1499520, 1515360, 1526784, 1537008, 1574496, 1599488, 1616384, 1630160, 1635840, 1653120, 1676736, 1731840, 1749440, 1763328, 1774080, 1793176, 1799424, 1818432, 1833930, 1863040, 1889280, 1908480, 1921260, 1956192, 1968120, 1999360, 2017323, 2020480, 2049344, 2078208, 2095920, 2099328, 2181120, 2204160, 2235648, 2241470, 2249280, 2273040, 2290176, 2305512, 2309120, 2365440, 2399232, 2424576, 2445240, 2544640, 2561680, 2597760, 2608256, 2624160, 2644992, 2689764, 2770944, 2794560, 2799104, 2862720, 2881890, 2934288, 2938880, 2980864, 2999040, 3030720, 3053568, 3074016, 3148992, 3232768, 3260320, 3271680, 3306240, 3353472, 3362205, 3463680, 3498880, 3548160, 3586352, 3598848, 3636864, 3667860, 3726080, 3778560, 3816960, 3842520, 3912384, 3936240, 3998720, 4034646, 4040960, 4098688, 4156416, 4191840, 4198656, 4408320, 4471296, 4482940, 4498560, 4546080, 4580352, 4611024, 4618240, 4798464, 4849152, 4890480, 5089280, 5123360, 5195520, 5216512, 5248320, 5289984, 5379528, 5589120, 5598208, 5725440, 5763780, 5868576, 5961728, 5998080, 6061440, 6148032, 6297984, 6465536, 6520640, 6543360, 6612480, 6706944, 6724410, 6927360, 6997760, 7096320, 7172704, 7197696, 7273728, 7335720, 7452160, 7633920, 7685040, 7824768, 7872480, 7997440, 8069292, 8081920, 8197376, 8312832, 8383680, 8397312, 8816640, 8942592, 8965880, 8997120, 9092160, 9160704, 9222048, 9698304, 9780960, 10086615, 10246720, 10391040, 10433024, 10496640, 10759056, 11178240, 11196416, 11450880, 11527560, 11737152, 11996160, 12122880, 12296064, 12595968, 13041280, 13224960, 13413888, 13448820, 13854720, 13995520, 14345408, 14395392, 14547456, 14671440, 14904320, 15267840, 15370080, 15649536, 15744960, 16138584, 16163840, 16394752, 16767360, 16794624, 17885184, 17931760, 17994240, 18184320, 18444096, 19396608, 19561920, 20173230, 20493440, 20782080, 20866048, 20993280, 21518112, 22356480, 22901760, 23055120, 23474304, 23992320, 24245760, 24592128, 25191936, 26082560, 26449920, 26827776, 26897640, 27991040, 28690816, 29094912, 29342880, 29808640, 30740160, 31299072, 31489920, 32277168, 32327680, 32789504, 33534720, 33589248, 35863520, 35988480, 36368640, 36888192, 39123840, 40346460, 40986880, 41564160, 41732096, 41986560, 43036224, 44712960, 45803520, 46110240, 46948608, 48491520, 49184256, 50383872, 52165120, 53655552, 53795280, 55982080, 57381632, 58189824, 58685760, 61480320, 62598144, 62979840, 64554336, 65579008, 67069440, 71727040, 71976960, 72737280, 73776384, 78247680, 80692920, 81973760, 83973120, 86072448, 89425920, 92220480, 93897216, 96983040, 98368512, 100767744, 104330240, 107590560, 114763264, 117371520, 122960640, 125196288, 125959680, 129108672, 134138880, 143454080, 145474560, 147552768, 156495360, 161385840, 163947520, 167946240, 172144896, 184440960, 187794432, 196737024, 208660480, 215181120, 229526528, 234743040, 245921280, 251919360, 258217344, 268277760, 286908160, 290949120, 295105536, 312990720, 322771680, 327895040, 344289792, 368881920, 375588864, 430362240, 459053056, 469486080, 491842560, 503838720, 516434688, 573816320, 590211072, 625981440, 645543360, 688579584, 737763840, 860724480, 938972160, 983685120, 1032869376, 1147632640, 1291086720, 1377159168, 1475527680, 1721448960, 1877944320, 2065738752, 2295265280, 2582173440, 2951055360, 3442897920, 4131477504, 5164346880, 6885795840, 10328693760, 20657387520]

約数ペア:

[(1, 20657387520), (2, 10328693760), (3, 6885795840), (4, 5164346880), (5, 4131477504), (6, 3442897920), (7, 2951055360), (8, 2582173440), (9, 2295265280), (10, 2065738752), (11, 1877944320), (12, 1721448960), (14, 1475527680), (15, 1377159168), (16, 1291086720), (18, 1147632640), (20, 1032869376), (21, 983685120), (22, 938972160), (24, 860724480), (28, 737763840), (30, 688579584), (32, 645543360), (33, 625981440), (35, 590211072), (36, 573816320), (40, 516434688), (41, 503838720), (42, 491842560), (44, 469486080), (45, 459053056), (48, 430362240), (55, 375588864), (56, 368881920), (60, 344289792), (63, 327895040), (64, 322771680), (66, 312990720), (70, 295105536), (71, 290949120), (72, 286908160), (77, 268277760), (80, 258217344), (82, 251919360), (84, 245921280), (88, 234743040), (90, 229526528), (96, 215181120), (99, 208660480), (105, 196737024), (110, 187794432), (112, 184440960), (120, 172144896), (123, 167946240), (126, 163947520), (128, 161385840), (132, 156495360), (140, 147552768), (142, 145474560), (144, 143454080), (154, 134138880), (160, 129108672), (164, 125959680), (165, 125196288), (168, 122960640), (176, 117371520), (180, 114763264), (192, 107590560), (198, 104330240), (205, 100767744), (210, 98368512), (213, 96983040), (220, 93897216), (224, 92220480), (231, 89425920), (240, 86072448), (246, 83973120), (252, 81973760), (256, 80692920), (264, 78247680), (280, 73776384), (284, 72737280), (287, 71976960), (288, 71727040), (308, 67069440), (315, 65579008), (320, 64554336), (328, 62979840), (330, 62598144), (336, 61480320), (352, 58685760), (355, 58189824), (360, 57381632), (369, 55982080), (384, 53795280), (385, 53655552), (396, 52165120), (410, 50383872), (420, 49184256), (426, 48491520), (440, 46948608), (448, 46110240), (451, 45803520), (462, 44712960), (480, 43036224), (492, 41986560), (495, 41732096), (497, 41564160), (504, 40986880), (512, 40346460), (528, 39123840), (560, 36888192), (568, 36368640), (574, 35988480), (576, 35863520), (615, 33589248), (616, 33534720), (630, 32789504), (639, 32327680), (640, 32277168), (656, 31489920), (660, 31299072), (672, 30740160), (693, 29808640), (704, 29342880), (710, 29094912), (720, 28690816), (738, 27991040), (768, 26897640), (770, 26827776), (781, 26449920), (792, 26082560), (820, 25191936), (840, 24592128), (852, 24245760), (861, 23992320), (880, 23474304), (896, 23055120), (902, 22901760), (924, 22356480), (960, 21518112), (984, 20993280), (990, 20866048), (994, 20782080), (1008, 20493440), (1024, 20173230), (1056, 19561920), (1065, 19396608), (1120, 18444096), (1136, 18184320), (1148, 17994240), (1152, 17931760), (1155, 17885184), (1230, 16794624), (1232, 16767360), (1260, 16394752), (1278, 16163840), (1280, 16138584), (1312, 15744960), (1320, 15649536), (1344, 15370080), (1353, 15267840), (1386, 14904320), (1408, 14671440), (1420, 14547456), (1435, 14395392), (1440, 14345408), (1476, 13995520), (1491, 13854720), (1536, 13448820), (1540, 13413888), (1562, 13224960), (1584, 13041280), (1640, 12595968), (1680, 12296064), (1704, 12122880), (1722, 11996160), (1760, 11737152), (1792, 11527560), (1804, 11450880), (1845, 11196416), (1848, 11178240), (1920, 10759056), (1968, 10496640), (1980, 10433024), (1988, 10391040), (2016, 10246720), (2048, 10086615), (2112, 9780960), (2130, 9698304), (2240, 9222048), (2255, 9160704), (2272, 9092160), (2296, 8997120), (2304, 8965880), (2310, 8942592), (2343, 8816640), (2460, 8397312), (2464, 8383680), (2485, 8312832), (2520, 8197376), (2556, 8081920), (2560, 8069292), (2583, 7997440), (2624, 7872480), (2640, 7824768), (2688, 7685040), (2706, 7633920), (2772, 7452160), (2816, 7335720), (2840, 7273728), (2870, 7197696), (2880, 7172704), (2911, 7096320), (2952, 6997760), (2982, 6927360), (3072, 6724410), (3080, 6706944), (3124, 6612480), (3157, 6543360), (3168, 6520640), (3195, 6465536), (3280, 6297984), (3360, 6148032), (3408, 6061440), (3444, 5998080), (3465, 5961728), (3520, 5868576), (3584, 5763780), (3608, 5725440), (3690, 5598208), (3696, 5589120), (3840, 5379528), (3905, 5289984), (3936, 5248320), (3960, 5216512), (3976, 5195520), (4032, 5123360), (4059, 5089280), (4224, 4890480), (4260, 4849152), (4305, 4798464), (4473, 4618240), (4480, 4611024), (4510, 4580352), (4544, 4546080), (4592, 4498560), (4608, 4482940), (4620, 4471296), (4686, 4408320), (4920, 4198656), (4928, 4191840), (4970, 4156416), (5040, 4098688), (5112, 4040960), (5120, 4034646), (5166, 3998720), (5248, 3936240), (5280, 3912384), (5376, 3842520), (5412, 3816960), (5467, 3778560), (5544, 3726080), (5632, 3667860), (5680, 3636864), (5740, 3598848), (5760, 3586352), (5822, 3548160), (5904, 3498880), (5964, 3463680), (6144, 3362205), (6160, 3353472), (6248, 3306240), (6314, 3271680), (6336, 3260320), (6390, 3232768), (6560, 3148992), (6720, 3074016), (6765, 3053568), (6816, 3030720), (6888, 2999040), (6930, 2980864), (7029, 2938880), (7040, 2934288), (7168, 2881890), (7216, 2862720), (7380, 2799104), (7392, 2794560), (7455, 2770944), (7680, 2689764), (7810, 2644992), (7872, 2624160), (7920, 2608256), (7952, 2597760), (8064, 2561680), (8118, 2544640), (8448, 2445240), (8520, 2424576), (8610, 2399232), (8733, 2365440), (8946, 2309120), (8960, 2305512), (9020, 2290176), (9088, 2273040), (9184, 2249280), (9216, 2241470), (9240, 2235648), (9372, 2204160), (9471, 2181120), (9840, 2099328), (9856, 2095920), (9940, 2078208), (10080, 2049344), (10224, 2020480), (10240, 2017323), (10332, 1999360), (10496, 1968120), (10560, 1956192), (10752, 1921260), (10824, 1908480), (10934, 1889280), (11088, 1863040), (11264, 1833930), (11360, 1818432), (11480, 1799424), (11520, 1793176), (11644, 1774080), (11715, 1763328), (11808, 1749440), (11928, 1731840), (12320, 1676736), (12496, 1653120), (12628, 1635840), (12672, 1630160), (12780, 1616384), (12915, 1599488), (13120, 1574496), (13440, 1537008), (13530, 1526784), (13632, 1515360), (13776, 1499520), (13860, 1490432), (14058, 1469440), (14080, 1467144), (14336, 1440945), (14432, 1431360), (14555, 1419264), (14760, 1399552), (14784, 1397280), (14910, 1385472), (15360, 1344882), (15620, 1322496), (15744, 1312080), (15785, 1308672), (15840, 1304128), (15904, 1298880), (16128, 1280840), (16236, 1272320), (16401, 1259520), (16896, 1222620), (17040, 1212288), (17220, 1199616), (17466, 1182720), (17892, 1154560), (17920, 1152756), (18040, 1145088), (18176, 1136520), (18368, 1124640), (18432, 1120735), (18480, 1117824), (18744, 1102080), (18942, 1090560), (19680, 1049664), (19712, 1047960), (19880, 1039104), (20160, 1024672), (20295, 1017856), (20377, 1013760), (20448, 1010240), (20664, 999680), (20992, 984060), (21120, 978096), (21504, 960630), (21648, 954240), (21868, 944640), (22176, 931520), (22365, 923648), (22528, 916965), (22720, 909216), (22960, 899712), (23040, 896588), (23288, 887040), (23430, 881664), (23616, 874720), (23856, 865920), (24640, 838368), (24992, 826560), (25256, 817920), (25344, 815080), (25560, 808192), (25830, 799744), (26199, 788480), (26240, 787248), (26880, 768504), (27060, 763392), (27264, 757680), (27335, 755712), (27552, 749760), (27720, 745216), (28116, 734720), (28160, 733572), (28413, 727040), (28864, 715680), (29110, 709632), (29520, 699776), (29568, 698640), (29820, 692736), (30720, 672441), (31240, 661248), (31488, 656040), (31570, 654336), (31680, 652064), (31808, 649440), (32021, 645120), (32256, 640420), (32472, 636160), (32802, 629760), (33792, 611310), (34080, 606144), (34440, 599808), (34932, 591360), (35145, 587776), (35784, 577280), (35840, 576378), (36080, 572544), (36352, 568260), (36736, 562320), (36960, 558912), (37488, 551040), (37884, 545280), (39360, 524832), (39424, 523980), (39760, 519552), (40320, 512336), (40590, 508928), (40754, 506880), (40896, 505120), (41328, 499840), (41984, 492030), (42240, 489048), (43008, 480315), (43296, 477120), (43665, 473088), (43736, 472320), (44352, 465760), (44730, 461824), (45440, 454608), (45920, 449856), (46080, 448294), (46576, 443520), 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