20781371520

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{967}}^1$

素因数の和:1053

約数の個数: 768

約数和(自身を含む): 90568558080

約数和(自身を除く): 69787186560

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, 32, 35, 36, 39, 40, 41, 42, 45, 48, 52, 56, 60, 63, 64, 65, 70, 72, 78, 80, 82, 84, 90, 91, 96, 104, 105, 112, 117, 120, 123, 126, 128, 130, 140, 144, 156, 160, 164, 168, 180, 182, 192, 195, 205, 208, 210, 224, 234, 240, 246, 252, 260, 273, 280, 287, 288, 312, 315, 320, 328, 336, 360, 364, 369, 384, 390, 410, 416, 420, 448, 455, 468, 480, 492, 504, 520, 533, 546, 560, 574, 576, 585, 615, 624, 630, 640, 656, 672, 720, 728, 738, 780, 819, 820, 832, 840, 861, 896, 910, 936, 960, 967, 984, 1008, 1040, 1066, 1092, 1120, 1148, 1152, 1170, 1230, 1248, 1260, 1312, 1344, 1365, 1435, 1440, 1456, 1476, 1560, 1599, 1638, 1640, 1664, 1680, 1722, 1820, 1845, 1872, 1920, 1934, 1968, 2016, 2080, 2132, 2184, 2240, 2296, 2340, 2460, 2496, 2520, 2583, 2624, 2665, 2688, 2730, 2870, 2880, 2901, 2912, 2952, 3120, 3198, 3276, 3280, 3360, 3444, 3640, 3690, 3731, 3744, 3868, 3936, 4032, 4095, 4160, 4264, 4305, 4368, 4480, 4592, 4680, 4797, 4835, 4920, 4992, 5040, 5166, 5248, 5330, 5460, 5740, 5760, 5802, 5824, 5904, 6240, 6396, 6552, 6560, 6720, 6769, 6888, 7280, 7380, 7462, 7488, 7736, 7872, 7995, 8064, 8190, 8320, 8528, 8610, 8703, 8736, 9184, 9360, 9594, 9670, 9840, 10080, 10332, 10660, 10920, 11193, 11480, 11604, 11648, 11808, 12480, 12571, 12792, 12915, 13104, 13120, 13440, 13538, 13776, 14505, 14560, 14760, 14924, 14976, 15472, 15744, 15990, 16380, 17056, 17220, 17406, 17472, 18368, 18655, 18720, 19188, 19340, 19680, 20160, 20307, 20664, 21320, 21840, 22386, 22960, 23208, 23616, 23985, 24960, 25142, 25584, 25830, 26208, 26240, 27076, 27552, 29010, 29120, 29520, 29848, 30944, 31980, 32760, 33579, 33845, 34112, 34440, 34812, 34944, 36736, 37310, 37440, 37713, 38376, 38680, 39360, 39647, 40320, 40614, 41328, 42640, 43515, 43680, 44772, 45920, 46416, 47232, 47970, 50284, 51168, 51660, 52416, 54152, 55104, 55965, 58020, 58240, 59040, 59696, 60921, 61888, 62855, 63960, 65520, 67158, 67690, 68224, 68880, 69624, 74620, 74880, 75426, 76752, 77360, 78720, 79294, 81228, 82656, 85280, 87030, 87360, 87997, 89544, 91840, 92832, 95940, 100568, 101535, 102336, 103320, 104832, 108304, 110208, 111930, 113139, 116040, 118080, 118941, 119392, 121842, 123776, 125710, 127920, 131040, 134316, 135380, 137760, 139248, 149240, 150852, 153504, 154720, 158588, 162456, 165312, 167895, 170560, 174060, 174720, 175994, 179088, 183680, 185664, 188565, 191880, 198235, 201136, 203070, 204672, 206640, 216608, 223860, 226278, 232080, 236160, 237882, 238784, 243684, 251420, 255840, 262080, 263991, 268632, 270760, 275520, 277529, 278496, 298480, 301704, 304605, 307008, 309440, 317176, 324912, 330624, 335790, 341120, 348120, 351988, 356823, 358176, 371328, 377130, 383760, 396470, 402272, 406140, 413280, 433216, 439985, 447720, 452556, 464160, 475764, 477568, 487368, 502840, 511680, 515411, 524160, 527982, 537264, 541520, 551040, 555058, 556992, 565695, 594705, 596960, 603408, 609210, 614016, 618880, 634352, 649824, 671580, 696240, 703976, 713646, 716352, 754260, 767520, 791973, 792940, 804544, 812280, 826560, 832587, 866432, 879970, 895440, 905112, 928320, 951528, 974736, 1005680, 1023360, 1030822, 1055964, 1074528, 1083040, 1110116, 1113984, 1131390, 1189410, 1193920, 1206816, 1218420, 1268704, 1299648, 1319955, 1343160, 1387645, 1392480, 1407952, 1427292, 1432704, 1508520, 1535040, 1546233, 1583946, 1585880, 1609088, 1624560, 1653120, 1665174, 1759940, 1784115, 1790880, 1810224, 1856640, 1903056, 1949472, 2011360, 2061644, 2111928, 2149056, 2166080, 2220232, 2262780, 2378820, 2387840, 2413632, 2436840, 2497761, 2537408, 2577055, 2599296, 2639910, 2686320, 2775290, 2784960, 2815904, 2854584, 3017040, 3070080, 3092466, 3167892, 3171760, 3249120, 3330348, 3519880, 3568230, 3581760, 3607877, 3620448, 3806112, 3898944, 3959865, 4022720, 4123288, 4162935, 4223856, 4298112, 4332160, 4440464, 4525560, 4638699, 4757640, 4827264, 4873680, 4995522, 5074816, 5154110, 5279820, 5372640, 5550580, 5569920, 5631808, 5709168, 6034080, 6184932, 6335784, 6343520, 6498240, 6660696, 7039760, 7136460, 7163520, 7215754, 7240896, 7612224, 7731165, 7797888, 7919730, 8045440, 8246576, 8325870, 8447712, 8880928, 9051120, 9277398, 9515280, 9747360, 9991044, 10308220, 10559640, 10745280, 10823631, 11101160, 11263616, 11418336, 12068160, 12369864, 12488805, 12671568, 12687040, 12996480, 13321392, 14079520, 14272920, 14431508, 14481792, 15224448, 15462330, 15839460, 16493152, 16651740, 16895424, 17761856, 18039385, 18102240, 18554796, 19030560, 19494720, 19982088, 20616440, 21119280, 21490560, 21647262, 22202320, 22836672, 23193495, 24136320, 24739728, 24977610, 25343136, 25374080, 26642784, 28159040, 28545840, 28863016, 30924660, 31678920, 32470893, 32986304, 33303480, 33790848, 35523712, 36078770, 36204480, 37109592, 38061120, 38989440, 39964176, 41232880, 42238560, 43294524, 44404640, 45673344, 46386990, 49479456, 49955220, 50686272, 53285568, 54118155, 56318080, 57091680, 57726032, 61849320, 63357840, 64941786, 65972608, 66606960, 72157540, 72408960, 74219184, 76122240, 79928352, 82465760, 84477120, 86589048, 88809280, 92773980, 98958912, 99910440, 101372544, 106571136, 108236310, 114183360, 115452064, 123698640, 126715680, 129883572, 133213920, 144315080, 148438368, 159856704, 162354465, 164931520, 168954240, 173178096, 177618560, 185547960, 197917824, 199820880, 216472620, 228366720, 230904128, 247397280, 253431360, 259767144, 266427840, 288630160, 296876736, 319713408, 324708930, 329863040, 346356192, 371095920, 399641760, 432945240, 461808256, 494794560, 506862720, 519534288, 532855680, 577260320, 593753472, 649417860, 692712384, 742191840, 799283520, 865890480, 989589120, 1039068576, 1154520640, 1298835720, 1385424768, 1484383680, 1598567040, 1731780960, 2078137152, 2309041280, 2597671440, 2968767360, 3463561920, 4156274304, 5195342880, 6927123840, 10390685760, 20781371520]

約数ペア:

[(1, 20781371520), (2, 10390685760), (3, 6927123840), (4, 5195342880), (5, 4156274304), (6, 3463561920), (7, 2968767360), (8, 2597671440), (9, 2309041280), (10, 2078137152), (12, 1731780960), (13, 1598567040), (14, 1484383680), (15, 1385424768), (16, 1298835720), (18, 1154520640), (20, 1039068576), (21, 989589120), (24, 865890480), (26, 799283520), (28, 742191840), (30, 692712384), (32, 649417860), (35, 593753472), (36, 577260320), (39, 532855680), (40, 519534288), (41, 506862720), (42, 494794560), (45, 461808256), (48, 432945240), (52, 399641760), (56, 371095920), (60, 346356192), (63, 329863040), (64, 324708930), (65, 319713408), (70, 296876736), (72, 288630160), (78, 266427840), (80, 259767144), (82, 253431360), (84, 247397280), (90, 230904128), (91, 228366720), (96, 216472620), (104, 199820880), (105, 197917824), (112, 185547960), (117, 177618560), (120, 173178096), (123, 168954240), (126, 164931520), (128, 162354465), (130, 159856704), (140, 148438368), (144, 144315080), (156, 133213920), (160, 129883572), (164, 126715680), (168, 123698640), (180, 115452064), (182, 114183360), (192, 108236310), (195, 106571136), (205, 101372544), (208, 99910440), (210, 98958912), (224, 92773980), (234, 88809280), (240, 86589048), (246, 84477120), (252, 82465760), (260, 79928352), (273, 76122240), (280, 74219184), (287, 72408960), (288, 72157540), (312, 66606960), (315, 65972608), (320, 64941786), (328, 63357840), (336, 61849320), (360, 57726032), (364, 57091680), (369, 56318080), (384, 54118155), (390, 53285568), (410, 50686272), (416, 49955220), (420, 49479456), (448, 46386990), (455, 45673344), (468, 44404640), (480, 43294524), (492, 42238560), (504, 41232880), (520, 39964176), (533, 38989440), (546, 38061120), (560, 37109592), (574, 36204480), (576, 36078770), (585, 35523712), (615, 33790848), (624, 33303480), (630, 32986304), (640, 32470893), (656, 31678920), (672, 30924660), (720, 28863016), (728, 28545840), (738, 28159040), (780, 26642784), (819, 25374080), (820, 25343136), (832, 24977610), (840, 24739728), (861, 24136320), (896, 23193495), (910, 22836672), (936, 22202320), (960, 21647262), (967, 21490560), (984, 21119280), (1008, 20616440), (1040, 19982088), (1066, 19494720), (1092, 19030560), (1120, 18554796), (1148, 18102240), (1152, 18039385), (1170, 17761856), (1230, 16895424), (1248, 16651740), (1260, 16493152), (1312, 15839460), (1344, 15462330), (1365, 15224448), (1435, 14481792), (1440, 14431508), (1456, 14272920), (1476, 14079520), (1560, 13321392), (1599, 12996480), (1638, 12687040), (1640, 12671568), (1664, 12488805), (1680, 12369864), (1722, 12068160), (1820, 11418336), (1845, 11263616), (1872, 11101160), (1920, 10823631), (1934, 10745280), (1968, 10559640), (2016, 10308220), (2080, 9991044), (2132, 9747360), (2184, 9515280), (2240, 9277398), (2296, 9051120), (2340, 8880928), (2460, 8447712), (2496, 8325870), (2520, 8246576), (2583, 8045440), (2624, 7919730), (2665, 7797888), (2688, 7731165), (2730, 7612224), (2870, 7240896), (2880, 7215754), (2901, 7163520), (2912, 7136460), (2952, 7039760), (3120, 6660696), (3198, 6498240), (3276, 6343520), (3280, 6335784), (3360, 6184932), (3444, 6034080), (3640, 5709168), (3690, 5631808), (3731, 5569920), (3744, 5550580), (3868, 5372640), (3936, 5279820), (4032, 5154110), (4095, 5074816), (4160, 4995522), (4264, 4873680), (4305, 4827264), (4368, 4757640), (4480, 4638699), (4592, 4525560), (4680, 4440464), (4797, 4332160), (4835, 4298112), (4920, 4223856), (4992, 4162935), (5040, 4123288), (5166, 4022720), (5248, 3959865), (5330, 3898944), (5460, 3806112), (5740, 3620448), (5760, 3607877), (5802, 3581760), (5824, 3568230), (5904, 3519880), (6240, 3330348), (6396, 3249120), (6552, 3171760), (6560, 3167892), (6720, 3092466), (6769, 3070080), (6888, 3017040), (7280, 2854584), (7380, 2815904), (7462, 2784960), (7488, 2775290), (7736, 2686320), (7872, 2639910), (7995, 2599296), (8064, 2577055), (8190, 2537408), (8320, 2497761), (8528, 2436840), (8610, 2413632), (8703, 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812280), (25830, 804544), (26208, 792940), (26240, 791973), (27076, 767520), (27552, 754260), (29010, 716352), (29120, 713646), (29520, 703976), (29848, 696240), (30944, 671580), (31980, 649824), (32760, 634352), (33579, 618880), (33845, 614016), (34112, 609210), (34440, 603408), (34812, 596960), (34944, 594705), (36736, 565695), (37310, 556992), (37440, 555058), (37713, 551040), (38376, 541520), (38680, 537264), (39360, 527982), (39647, 524160), (40320, 515411), (40614, 511680), (41328, 502840), (42640, 487368), (43515, 477568), (43680, 475764), (44772, 464160), (45920, 452556), (46416, 447720), (47232, 439985), (47970, 433216), (50284, 413280), (51168, 406140), (51660, 402272), (52416, 396470), (54152, 383760), (55104, 377130), (55965, 371328), (58020, 358176), (58240, 356823), (59040, 351988), (59696, 348120), (60921, 341120), (61888, 335790), (62855, 330624), (63960, 324912), (65520, 317176), (67158, 309440), (67690, 307008), (68224, 304605), (68880, 301704), (69624, 298480), (74620, 278496), (74880, 277529), (75426, 275520), (76752, 270760), (77360, 268632), (78720, 263991), (79294, 262080), (81228, 255840), (82656, 251420), (85280, 243684), (87030, 238784), (87360, 237882), (87997, 236160), (89544, 232080), (91840, 226278), (92832, 223860), (95940, 216608), (100568, 206640), (101535, 204672), (102336, 203070), (103320, 201136), (104832, 198235), (108304, 191880), (110208, 188565), (111930, 185664), (113139, 183680), (116040, 179088), (118080, 175994), (118941, 174720), (119392, 174060), (121842, 170560), (123776, 167895), (125710, 165312), (127920, 162456), (131040, 158588), (134316, 154720), (135380, 153504), (137760, 150852), (139248, 149240)]