20408693760

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 1056

約数和(自身を含む): 90414385152

約数和(自身を除く): 70005691392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 31, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 62, 63, 64, 65, 70, 72, 78, 80, 84, 90, 91, 93, 96, 104, 105, 112, 117, 120, 124, 126, 128, 130, 140, 144, 155, 156, 157, 160, 168, 180, 182, 186, 192, 195, 208, 210, 217, 224, 234, 240, 248, 252, 256, 260, 273, 279, 280, 288, 310, 312, 314, 315, 320, 336, 360, 364, 372, 384, 390, 403, 416, 420, 434, 448, 455, 465, 468, 471, 480, 496, 504, 512, 520, 546, 558, 560, 576, 585, 620, 624, 628, 630, 640, 651, 672, 720, 728, 744, 768, 780, 785, 806, 819, 832, 840, 868, 896, 910, 930, 936, 942, 960, 992, 1008, 1024, 1040, 1085, 1092, 1099, 1116, 1120, 1152, 1170, 1209, 1240, 1248, 1256, 1260, 1280, 1302, 1344, 1365, 1395, 1413, 1440, 1456, 1488, 1536, 1560, 1570, 1612, 1638, 1664, 1680, 1736, 1792, 1820, 1860, 1872, 1884, 1920, 1953, 1984, 2015, 2016, 2041, 2080, 2170, 2184, 2198, 2232, 2240, 2304, 2340, 2355, 2418, 2480, 2496, 2512, 2520, 2560, 2604, 2688, 2730, 2790, 2821, 2826, 2880, 2912, 2976, 3072, 3120, 3140, 3224, 3255, 3276, 3297, 3328, 3360, 3472, 3584, 3627, 3640, 3720, 3744, 3768, 3840, 3906, 3968, 4030, 4032, 4082, 4095, 4160, 4340, 4368, 4396, 4464, 4480, 4608, 4680, 4710, 4836, 4867, 4960, 4992, 5024, 5040, 5120, 5208, 5376, 5460, 5495, 5580, 5642, 5652, 5760, 5824, 5952, 6045, 6123, 6240, 6280, 6448, 6510, 6552, 6594, 6656, 6720, 6944, 7065, 7168, 7254, 7280, 7440, 7488, 7536, 7680, 7812, 7936, 8060, 8064, 8164, 8190, 8320, 8463, 8680, 8736, 8792, 8928, 8960, 9216, 9360, 9420, 9672, 9734, 9765, 9891, 9920, 9984, 10048, 10080, 10205, 10416, 10752, 10920, 10990, 11160, 11284, 11304, 11520, 11648, 11904, 12090, 12246, 12480, 12560, 12896, 13020, 13104, 13188, 13312, 13440, 13888, 14105, 14130, 14287, 14508, 14560, 14601, 14880, 14976, 15072, 15360, 15624, 15872, 16120, 16128, 16328, 16380, 16485, 16640, 16926, 17360, 17472, 17584, 17856, 17920, 18135, 18369, 18720, 18840, 19344, 19468, 19530, 19782, 19840, 19968, 20096, 20160, 20410, 20832, 21504, 21840, 21980, 22320, 22568, 22608, 23040, 23296, 23808, 24180, 24335, 24492, 24960, 25120, 25389, 25792, 26040, 26208, 26376, 26880, 27776, 28210, 28260, 28574, 29016, 29120, 29202, 29760, 29952, 30144, 30615, 31248, 31744, 32240, 32256, 32656, 32760, 32970, 33280, 33852, 34069, 34720, 34944, 35168, 35712, 35840, 36270, 36738, 37440, 37680, 38688, 38936, 39060, 39564, 39680, 39936, 40192, 40320, 40820, 41664, 42315, 42861, 43680, 43803, 43960, 44640, 45136, 45216, 46080, 46592, 47616, 48360, 48670, 48984, 49455, 49920, 50240, 50778, 51584, 52080, 52416, 52752, 53760, 55552, 56420, 56520, 57148, 58032, 58240, 58404, 59520, 59904, 60288, 61230, 62496, 63271, 64480, 64512, 65312, 65520, 65940, 66560, 67704, 68138, 69440, 69888, 70336, 71424, 71435, 72540, 73005, 73476, 74880, 75360, 77376, 77872, 78120, 79128, 79360, 80384, 80640, 81640, 83328, 84630, 85722, 87360, 87606, 87920, 89280, 90272, 90432, 91845, 93184, 95232, 96720, 97340, 97968, 98910, 99840, 100480, 101556, 102207, 103168, 104160, 104832, 105504, 107520, 111104, 112840, 113040, 114296, 116064, 116480, 116808, 119040, 119808, 120576, 122460, 124992, 126542, 126945, 128583, 128960, 130624, 131040, 131880, 135408, 136276, 138880, 139776, 140672, 142848, 142870, 145080, 146010, 146952, 149760, 150720, 154752, 155744, 156240, 158256, 158720, 160768, 161280, 163280, 166656, 169260, 170345, 171444, 174720, 175212, 175840, 178560, 180544, 180864, 183690, 189813, 193440, 194680, 195936, 197820, 199680, 200960, 203112, 204414, 206336, 208320, 209664, 211008, 214305, 219015, 222208, 225680, 226080, 228592, 232128, 232960, 233616, 238080, 241152, 244920, 249984, 253084, 253890, 257166, 257920, 261248, 262080, 263760, 270816, 272552, 277760, 279552, 281344, 285696, 285740, 290160, 292020, 293904, 299520, 301440, 306621, 309504, 311488, 312480, 316355, 316512, 322560, 326560, 333312, 338520, 340690, 342888, 349440, 350424, 351680, 357120, 361088, 361728, 367380, 379626, 386880, 389360, 391872, 395640, 401920, 406224, 408828, 412672, 416640, 419328, 422016, 428610, 438030, 442897, 451360, 452160, 457184, 464256, 465920, 467232, 476160, 482304, 489840, 499968, 506168, 507780, 511035, 514332, 515840, 522496, 524160, 527520, 541632, 545104, 555520, 562688, 569439, 571480, 580320, 584040, 587808, 599040, 602880, 613242, 619008, 622976, 624960, 632710, 633024, 642915, 653120, 666624, 677040, 681380, 685776, 698880, 700848, 703360, 714240, 722176, 723456, 734760, 759252, 773760, 778720, 783744, 791280, 803840, 812448, 817656, 833280, 838656, 844032, 857220, 876060, 885794, 902720, 904320, 914368, 928512, 934464, 949065, 979680, 999936, 1012336, 1015560, 1022070, 1028664, 1031680, 1044992, 1048320, 1055040, 1083264, 1090208, 1111040, 1125376, 1138878, 1142960, 1160640, 1168080, 1175616, 1205760, 1226484, 1238016, 1245952, 1249920, 1265420, 1266048, 1285830, 1306240, 1328691, 1354080, 1362760, 1371552, 1397760, 1401696, 1406720, 1428480, 1444352, 1446912, 1469520, 1518504, 1533105, 1547520, 1557440, 1567488, 1582560, 1624896, 1635312, 1666560, 1688064, 1714440, 1752120, 1771588, 1805440, 1808640, 1828736, 1857024, 1868928, 1898130, 1959360, 1999872, 2024672, 2031120, 2044140, 2057328, 2063360, 2089984, 2096640, 2110080, 2166528, 2180416, 2214485, 2277756, 2285920, 2321280, 2336160, 2351232, 2411520, 2452968, 2491904, 2499840, 2530840, 2532096, 2571660, 2612480, 2657382, 2708160, 2725520, 2743104, 2803392, 2813440, 2847195, 2888704, 2939040, 3037008, 3066210, 3095040, 3114880, 3134976, 3165120, 3249792, 3270624, 3333120, 3376128, 3428880, 3504240, 3543176, 3610880, 3617280, 3657472, 3714048, 3737856, 3796260, 3918720, 3986073, 4049344, 4062240, 4088280, 4114656, 4193280, 4220160, 4333056, 4360832, 4428970, 4555512, 4571840, 4642560, 4672320, 4702464, 4905936, 4983808, 4999680, 5061680, 5064192, 5143320, 5224960, 5314764, 5416320, 5451040, 5486208, 5606784, 5626880, 5694390, 5878080, 6074016, 6132420, 6190080, 6229760, 6269952, 6330240, 6499584, 6541248, 6643455, 6857760, 7008480, 7086352, 7221760, 7234560, 7314944, 7475712, 7592520, 7837440, 7972146, 8098688, 8124480, 8176560, 8229312, 8440320, 8666112, 8721664, 8857940, 9111024, 9143680, 9285120, 9344640, 9404928, 9811872, 9999360, 10123360, 10128384, 10286640, 10449920, 10629528, 10832640, 10902080, 10972416, 11213568, 11388780, 11756160, 12148032, 12264840, 12459520, 12660480, 12999168, 13082496, 13286910, 13715520, 14016960, 14172704, 14443520, 14629888, 14951424, 15185040, 15674880, 15944292, 16197376, 16248960, 16353120, 16458624, 16880640, 17443328, 17715880, 18222048, 18287360, 18570240, 18689280, 18809856, 19623744, 19930365, 20246720, 20573280, 21259056, 21665280, 21804160, 21944832, 22427136, 22777560, 23512320, 24296064, 24529680, 24919040, 25320960, 25998336, 26164992, 26573820, 27431040, 28033920, 28345408, 30370080, 31349760, 31888584, 32394752, 32497920, 32706240, 32917248, 34886656, 35431760, 36444096, 36574720, 37378560, 39247488, 39860730, 40493440, 41146560, 42518112, 43330560, 43608320, 43889664, 44854272, 45555120, 47024640, 48592128, 49059360, 50641920, 52329984, 53147640, 54862080, 56067840, 56690816, 60740160, 63777168, 64789504, 64995840, 65412480, 65834496, 70863520, 72888192, 73149440, 74757120, 78494976, 79721460, 80986880, 82293120, 85036224, 87216640, 91110240, 94049280, 97184256, 98118720, 104659968, 106295280, 109724160, 112135680, 113381632, 121480320, 127554336, 129991680, 130824960, 131668992, 141727040, 145776384, 156989952, 159442920, 161973760, 164586240, 170072448, 174433280, 182220480, 194368512, 196237440, 212590560, 219448320, 224271360, 226763264, 242960640, 255108672, 261649920, 283454080, 291552768, 313979904, 318885840, 323947520, 329172480, 340144896, 364440960, 392474880, 425181120, 453526528, 485921280, 510217344, 523299840, 566908160, 583105536, 637771680, 658344960, 680289792, 728881920, 784949760, 850362240, 971842560, 1020434688, 1133816320, 1275543360, 1360579584, 1457763840, 1569899520, 1700724480, 2040869376, 2267632640, 2551086720, 2915527680, 3401448960, 4081738752, 5102173440, 6802897920, 10204346880, 20408693760]

約数ペア:

[(1, 20408693760), (2, 10204346880), (3, 6802897920), (4, 5102173440), (5, 4081738752), (6, 3401448960), (7, 2915527680), (8, 2551086720), (9, 2267632640), (10, 2040869376), (12, 1700724480), (13, 1569899520), (14, 1457763840), (15, 1360579584), (16, 1275543360), (18, 1133816320), (20, 1020434688), (21, 971842560), (24, 850362240), (26, 784949760), (28, 728881920), (30, 680289792), (31, 658344960), (32, 637771680), (35, 583105536), (36, 566908160), (39, 523299840), (40, 510217344), (42, 485921280), (45, 453526528), (48, 425181120), (52, 392474880), (56, 364440960), (60, 340144896), (62, 329172480), (63, 323947520), (64, 318885840), (65, 313979904), (70, 291552768), (72, 283454080), (78, 261649920), (80, 255108672), (84, 242960640), (90, 226763264), (91, 224271360), (93, 219448320), (96, 212590560), (104, 196237440), (105, 194368512), (112, 182220480), (117, 174433280), (120, 170072448), (124, 164586240), (126, 161973760), (128, 159442920), (130, 156989952), (140, 145776384), (144, 141727040), (155, 131668992), (156, 130824960), (157, 129991680), (160, 127554336), (168, 121480320), (180, 113381632), (182, 112135680), (186, 109724160), (192, 106295280), (195, 104659968), (208, 98118720), (210, 97184256), (217, 94049280), (224, 91110240), (234, 87216640), (240, 85036224), (248, 82293120), (252, 80986880), (256, 79721460), (260, 78494976), (273, 74757120), (279, 73149440), (280, 72888192), (288, 70863520), (310, 65834496), (312, 65412480), (314, 64995840), (315, 64789504), (320, 63777168), (336, 60740160), (360, 56690816), (364, 56067840), (372, 54862080), (384, 53147640), (390, 52329984), (403, 50641920), (416, 49059360), (420, 48592128), (434, 47024640), (448, 45555120), (455, 44854272), (465, 43889664), (468, 43608320), (471, 43330560), (480, 42518112), (496, 41146560), (504, 40493440), (512, 39860730), (520, 39247488), (546, 37378560), (558, 36574720), (560, 36444096), (576, 35431760), (585, 34886656), (620, 32917248), (624, 32706240), (628, 32497920), (630, 32394752), (640, 31888584), (651, 31349760), (672, 30370080), (720, 28345408), (728, 28033920), (744, 27431040), (768, 26573820), (780, 26164992), (785, 25998336), (806, 25320960), (819, 24919040), (832, 24529680), (840, 24296064), (868, 23512320), (896, 22777560), (910, 22427136), (930, 21944832), (936, 21804160), (942, 21665280), (960, 21259056), (992, 20573280), (1008, 20246720), (1024, 19930365), (1040, 19623744), (1085, 18809856), (1092, 18689280), (1099, 18570240), (1116, 18287360), (1120, 18222048), (1152, 17715880), (1170, 17443328), (1209, 16880640), (1240, 16458624), (1248, 16353120), (1256, 16248960), (1260, 16197376), (1280, 15944292), (1302, 15674880), (1344, 15185040), (1365, 14951424), (1395, 14629888), (1413, 14443520), (1440, 14172704), (1456, 14016960), (1488, 13715520), (1536, 13286910), (1560, 13082496), (1570, 12999168), (1612, 12660480), (1638, 12459520), (1664, 12264840), (1680, 12148032), (1736, 11756160), (1792, 11388780), (1820, 11213568), (1860, 10972416), (1872, 10902080), (1884, 10832640), (1920, 10629528), (1953, 10449920), (1984, 10286640), (2015, 10128384), (2016, 10123360), (2041, 9999360), (2080, 9811872), (2170, 9404928), (2184, 9344640), (2198, 9285120), (2232, 9143680), (2240, 9111024), (2304, 8857940), (2340, 8721664), (2355, 8666112), (2418, 8440320), (2480, 8229312), (2496, 8176560), (2512, 8124480), (2520, 8098688), (2560, 7972146), (2604, 7837440), (2688, 7592520), (2730, 7475712), (2790, 7314944), (2821, 7234560), (2826, 7221760), (2880, 7086352), (2912, 7008480), (2976, 6857760), (3072, 6643455), (3120, 6541248), (3140, 6499584), (3224, 6330240), (3255, 6269952), (3276, 6229760), (3297, 6190080), (3328, 6132420), (3360, 6074016), (3472, 5878080), (3584, 5694390), (3627, 5626880), (3640, 5606784), (3720, 5486208), (3744, 5451040), (3768, 5416320), (3840, 5314764), (3906, 5224960), (3968, 5143320), (4030, 5064192), (4032, 5061680), (4082, 4999680), (4095, 4983808), (4160, 4905936), (4340, 4702464), (4368, 4672320), (4396, 4642560), (4464, 4571840), (4480, 4555512), (4608, 4428970), (4680, 4360832), (4710, 4333056), (4836, 4220160), (4867, 4193280), (4960, 4114656), (4992, 4088280), (5024, 4062240), (5040, 4049344), (5120, 3986073), (5208, 3918720), (5376, 3796260), (5460, 3737856), (5495, 3714048), (5580, 3657472), (5642, 3617280), (5652, 3610880), (5760, 3543176), (5824, 3504240), (5952, 3428880), (6045, 3376128), (6123, 3333120), (6240, 3270624), (6280, 3249792), (6448, 3165120), (6510, 3134976), (6552, 3114880), (6594, 3095040), (6656, 3066210), (6720, 3037008), (6944, 2939040), (7065, 2888704), (7168, 2847195), (7254, 2813440), (7280, 2803392), (7440, 2743104), (7488, 2725520), (7536, 2708160), (7680, 2657382), (7812, 2612480), (7936, 2571660), (8060, 2532096), (8064, 2530840), (8164, 2499840), (8190, 2491904), (8320, 2452968), (8463, 2411520), (8680, 2351232), (8736, 2336160), (8792, 2321280), (8928, 2285920), (8960, 2277756), (9216, 2214485), (9360, 2180416), (9420, 2166528), (9672, 2110080), (9734, 2096640), (9765, 2089984), (9891, 2063360), (9920, 2057328), (9984, 2044140), (10048, 2031120), (10080, 2024672), (10205, 1999872), (10416, 1959360), (10752, 1898130), (10920, 1868928), (10990, 1857024), (11160, 1828736), (11284, 1808640), (11304, 1805440), (11520, 1771588), (11648, 1752120), (11904, 1714440), (12090, 1688064), (12246, 1666560), (12480, 1635312), (12560, 1624896), (12896, 1582560), (13020, 1567488), (13104, 1557440), (13188, 1547520), (13312, 1533105), (13440, 1518504), (13888, 1469520), (14105, 1446912), (14130, 1444352), (14287, 1428480), (14508, 1406720), (14560, 1401696), (14601, 1397760), (14880, 1371552), (14976, 1362760), (15072, 1354080), (15360, 1328691), (15624, 1306240), (15872, 1285830), (16120, 1266048), (16128, 1265420), (16328, 1249920), (16380, 1245952), (16485, 1238016), (16640, 1226484), (16926, 1205760), (17360, 1175616), (17472, 1168080), (17584, 1160640), (17856, 1142960), (17920, 1138878), (18135, 1125376), (18369, 1111040), (18720, 1090208), (18840, 1083264), (19344, 1055040), (19468, 1048320), (19530, 1044992), (19782, 1031680), (19840, 1028664), (19968, 1022070), (20096, 1015560), (20160, 1012336), (20410, 999936), (20832, 979680), (21504, 949065), (21840, 934464), (21980, 928512), (22320, 914368), (22568, 904320), (22608, 902720), (23040, 885794), (23296, 876060), (23808, 857220), (24180, 844032), (24335, 838656), (24492, 833280), (24960, 817656), (25120, 812448), (25389, 803840), (25792, 791280), (26040, 783744), (26208, 778720), (26376, 773760), (26880, 759252), (27776, 734760), (28210, 723456), (28260, 722176), (28574, 714240), (29016, 703360), (29120, 700848), (29202, 698880), (29760, 685776), (29952, 681380), (30144, 677040), (30615, 666624), (31248, 653120), (31744, 642915), (32240, 633024), (32256, 632710), (32656, 624960), (32760, 622976), (32970, 619008), (33280, 613242), (33852, 602880), (34069, 599040), (34720, 587808), (34944, 584040), (35168, 580320), (35712, 571480), (35840, 569439), (36270, 562688), (36738, 555520), (37440, 545104), (37680, 541632), (38688, 527520), (38936, 524160), (39060, 522496), (39564, 515840), (39680, 514332), (39936, 511035), (40192, 507780), (40320, 506168), (40820, 499968), (41664, 489840), (42315, 482304), (42861, 476160), (43680, 467232), (43803, 465920), (43960, 464256), (44640, 457184), (45136, 452160), (45216, 451360), (46080, 442897), (46592, 438030), (47616, 428610), (48360, 422016), (48670, 419328), (48984, 416640), (49455, 412672), (49920, 408828), (50240, 406224), (50778, 401920), (51584, 395640), (52080, 391872), (52416, 389360), (52752, 386880), (53760, 379626), (55552, 367380), (56420, 361728), (56520, 361088), (57148, 357120), (58032, 351680), (58240, 350424), (58404, 349440), (59520, 342888), (59904, 340690), (60288, 338520), (61230, 333312), (62496, 326560), (63271, 322560), (64480, 316512), (64512, 316355), (65312, 312480), (65520, 311488), (65940, 309504), (66560, 306621), (67704, 301440), (68138, 299520), (69440, 293904), (69888, 292020), (70336, 290160), (71424, 285740), (71435, 285696), (72540, 281344), (73005, 279552), (73476, 277760), (74880, 272552), (75360, 270816), (77376, 263760), (77872, 262080), (78120, 261248), (79128, 257920), (79360, 257166), (80384, 253890), (80640, 253084), (81640, 249984), (83328, 244920), (84630, 241152), (85722, 238080), (87360, 233616), (87606, 232960), (87920, 232128), (89280, 228592), (90272, 226080), (90432, 225680), (91845, 222208), (93184, 219015), (95232, 214305), (96720, 211008), (97340, 209664), (97968, 208320), (98910, 206336), (99840, 204414), (100480, 203112), (101556, 200960), (102207, 199680), (103168, 197820), (104160, 195936), (104832, 194680), (105504, 193440), (107520, 189813), (111104, 183690), (112840, 180864), (113040, 180544), (114296, 178560), (116064, 175840), (116480, 175212), (116808, 174720), (119040, 171444), (119808, 170345), (120576, 169260), (122460, 166656), (124992, 163280), (126542, 161280), (126945, 160768), (128583, 158720), (128960, 158256), (130624, 156240), (131040, 155744), (131880, 154752), (135408, 150720), (136276, 149760), (138880, 146952), (139776, 146010), (140672, 145080), (142848, 142870)]