20781221760

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1291

約数の個数: 512

約数和(自身を含む): 80333568000

約数和(自身を除く): 59552346240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 79, 80, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 158, 160, 180, 192, 195, 208, 216, 234, 237, 240, 260, 270, 288, 312, 316, 320, 351, 360, 384, 390, 395, 416, 432, 468, 474, 480, 520, 540, 576, 585, 624, 632, 640, 702, 711, 720, 780, 790, 832, 864, 936, 948, 960, 1027, 1040, 1080, 1152, 1170, 1171, 1185, 1248, 1264, 1404, 1422, 1440, 1560, 1580, 1664, 1728, 1755, 1872, 1896, 1920, 2054, 2080, 2133, 2160, 2340, 2342, 2370, 2496, 2528, 2808, 2844, 2880, 3081, 3120, 3160, 3456, 3510, 3513, 3555, 3744, 3792, 4108, 4160, 4266, 4320, 4680, 4684, 4740, 4992, 5056, 5135, 5616, 5688, 5760, 5855, 6162, 6240, 6320, 7020, 7026, 7110, 7488, 7584, 8216, 8320, 8532, 8640, 9243, 9360, 9368, 9480, 10112, 10270, 10539, 10665, 11232, 11376, 11710, 12324, 12480, 12640, 14040, 14052, 14220, 14976, 15168, 15223, 15405, 16432, 17064, 17280, 17565, 18486, 18720, 18736, 18960, 20540, 21078, 21330, 22464, 22752, 23420, 24648, 24960, 25280, 27729, 28080, 28104, 28440, 30336, 30446, 30810, 31617, 32864, 34128, 35130, 36972, 37440, 37472, 37920, 41080, 42156, 42660, 44928, 45504, 45669, 46215, 46840, 49296, 50560, 52695, 55458, 56160, 56208, 56880, 60892, 61620, 63234, 65728, 68256, 70260, 73944, 74880, 74944, 75840, 76115, 82160, 84312, 85320, 91008, 91338, 92430, 92509, 93680, 98592, 105390, 110916, 112320, 112416, 113760, 121784, 123240, 126468, 131456, 136512, 137007, 138645, 140520, 147888, 149888, 151680, 152230, 158085, 164320, 168624, 170640, 182676, 184860, 185018, 187360, 197184, 210780, 221832, 224640, 224832, 227520, 228345, 243568, 246480, 252936, 273024, 274014, 277290, 277527, 281040, 295776, 304460, 316170, 328640, 337248, 341280, 365352, 369720, 370036, 374720, 394368, 411021, 421560, 443664, 449664, 455040, 456690, 462545, 487136, 492960, 505872, 548028, 554580, 555054, 562080, 591552, 608920, 632340, 657280, 674496, 682560, 685035, 730704, 739440, 740072, 749440, 822042, 832581, 843120, 887328, 913380, 925090, 974272, 985920, 1011744, 1096056, 1109160, 1110108, 1124160, 1183104, 1202617, 1217840, 1264680, 1348992, 1365120, 1370070, 1387635, 1461408, 1478880, 1480144, 1644084, 1665162, 1686240, 1774656, 1826760, 1850180, 1948544, 1971840, 2023488, 2055105, 2192112, 2218320, 2220216, 2248320, 2405234, 2435680, 2497743, 2529360, 2740140, 2775270, 2922816, 2957760, 2960288, 3288168, 3330324, 3372480, 3549312, 3607851, 3653520, 3700360, 4046976, 4110210, 4162905, 4384224, 4436640, 4440432, 4810468, 4871360, 4995486, 5058720, 5480280, 5550540, 5845632, 5915520, 5920576, 6013085, 6576336, 6660648, 6744960, 7215702, 7307040, 7400720, 8220420, 8325810, 8768448, 8873280, 8880864, 9620936, 9742720, 9990972, 10117440, 10823553, 10960560, 11101080, 11841152, 12026170, 12488715, 13152672, 13321296, 14431404, 14614080, 14801440, 16440840, 16651620, 17536896, 17746560, 17761728, 18039255, 19241872, 19981944, 20234880, 21647106, 21921120, 22202160, 24052340, 24977430, 26305344, 26642592, 28862808, 29228160, 29602880, 32470659, 32881680, 33303240, 35523456, 36078510, 38483744, 39963888, 43294212, 43842240, 44404320, 48104680, 49954860, 52610688, 53285184, 54117765, 57725616, 59205760, 64941318, 65763360, 66606480, 72157020, 76967488, 79927776, 86588424, 87684480, 88808640, 96209360, 99909720, 106570368, 108235530, 115451232, 129882636, 131526720, 133212960, 144314040, 153934976, 159855552, 162353295, 173176848, 177617280, 192418720, 199819440, 216471060, 230902464, 259765272, 263053440, 266425920, 288628080, 319711104, 324706590, 346353696, 384837440, 399638880, 432942120, 461804928, 519530544, 532851840, 577256160, 649413180, 692707392, 769674880, 799277760, 865884240, 1039061088, 1154512320, 1298826360, 1385414784, 1598555520, 1731768480, 2078122176, 2309024640, 2597652720, 3463536960, 4156244352, 5195305440, 6927073920, 10390610880, 20781221760]

約数ペア:

[(1, 20781221760), (2, 10390610880), (3, 6927073920), (4, 5195305440), (5, 4156244352), (6, 3463536960), (8, 2597652720), (9, 2309024640), (10, 2078122176), (12, 1731768480), (13, 1598555520), (15, 1385414784), (16, 1298826360), (18, 1154512320), (20, 1039061088), (24, 865884240), (26, 799277760), (27, 769674880), (30, 692707392), (32, 649413180), (36, 577256160), (39, 532851840), (40, 519530544), (45, 461804928), (48, 432942120), (52, 399638880), (54, 384837440), (60, 346353696), (64, 324706590), (65, 319711104), (72, 288628080), (78, 266425920), (79, 263053440), (80, 259765272), (90, 230902464), (96, 216471060), (104, 199819440), (108, 192418720), (117, 177617280), (120, 173176848), (128, 162353295), (130, 159855552), (135, 153934976), (144, 144314040), (156, 133212960), (158, 131526720), (160, 129882636), (180, 115451232), (192, 108235530), (195, 106570368), (208, 99909720), (216, 96209360), (234, 88808640), (237, 87684480), (240, 86588424), (260, 79927776), (270, 76967488), (288, 72157020), (312, 66606480), (316, 65763360), (320, 64941318), (351, 59205760), (360, 57725616), (384, 54117765), (390, 53285184), (395, 52610688), (416, 49954860), (432, 48104680), (468, 44404320), (474, 43842240), (480, 43294212), (520, 39963888), (540, 38483744), (576, 36078510), (585, 35523456), (624, 33303240), (632, 32881680), (640, 32470659), (702, 29602880), (711, 29228160), (720, 28862808), (780, 26642592), (790, 26305344), (832, 24977430), (864, 24052340), (936, 22202160), (948, 21921120), (960, 21647106), (1027, 20234880), (1040, 19981944), (1080, 19241872), (1152, 18039255), (1170, 17761728), (1171, 17746560), (1185, 17536896), (1248, 16651620), (1264, 16440840), (1404, 14801440), (1422, 14614080), (1440, 14431404), (1560, 13321296), (1580, 13152672), (1664, 12488715), (1728, 12026170), (1755, 11841152), (1872, 11101080), (1896, 10960560), (1920, 10823553), (2054, 10117440), (2080, 9990972), (2133, 9742720), (2160, 9620936), (2340, 8880864), (2342, 8873280), (2370, 8768448), (2496, 8325810), (2528, 8220420), (2808, 7400720), (2844, 7307040), (2880, 7215702), (3081, 6744960), (3120, 6660648), (3160, 6576336), (3456, 6013085), (3510, 5920576), (3513, 5915520), (3555, 5845632), (3744, 5550540), (3792, 5480280), (4108, 5058720), (4160, 4995486), (4266, 4871360), (4320, 4810468), (4680, 4440432), (4684, 4436640), (4740, 4384224), (4992, 4162905), (5056, 4110210), (5135, 4046976), (5616, 3700360), (5688, 3653520), (5760, 3607851), (5855, 3549312), (6162, 3372480), (6240, 3330324), (6320, 3288168), (7020, 2960288), (7026, 2957760), (7110, 2922816), (7488, 2775270), (7584, 2740140), (8216, 2529360), (8320, 2497743), (8532, 2435680), (8640, 2405234), (9243, 2248320), (9360, 2220216), (9368, 2218320), (9480, 2192112), (10112, 2055105), (10270, 2023488), (10539, 1971840), (10665, 1948544), (11232, 1850180), (11376, 1826760), (11710, 1774656), (12324, 1686240), (12480, 1665162), (12640, 1644084), (14040, 1480144), (14052, 1478880), (14220, 1461408), (14976, 1387635), (15168, 1370070), (15223, 1365120), (15405, 1348992), (16432, 1264680), (17064, 1217840), (17280, 1202617), (17565, 1183104), (18486, 1124160), (18720, 1110108), (18736, 1109160), (18960, 1096056), (20540, 1011744), (21078, 985920), (21330, 974272), (22464, 925090), (22752, 913380), (23420, 887328), (24648, 843120), (24960, 832581), (25280, 822042), (27729, 749440), (28080, 740072), (28104, 739440), (28440, 730704), (30336, 685035), (30446, 682560), (30810, 674496), (31617, 657280), (32864, 632340), (34128, 608920), (35130, 591552), (36972, 562080), (37440, 555054), (37472, 554580), (37920, 548028), (41080, 505872), (42156, 492960), (42660, 487136), (44928, 462545), (45504, 456690), (45669, 455040), (46215, 449664), (46840, 443664), (49296, 421560), (50560, 411021), (52695, 394368), (55458, 374720), (56160, 370036), (56208, 369720), (56880, 365352), (60892, 341280), (61620, 337248), (63234, 328640), (65728, 316170), (68256, 304460), (70260, 295776), (73944, 281040), (74880, 277527), (74944, 277290), (75840, 274014), (76115, 273024), (82160, 252936), (84312, 246480), (85320, 243568), (91008, 228345), (91338, 227520), (92430, 224832), (92509, 224640), (93680, 221832), (98592, 210780), (105390, 197184), (110916, 187360), (112320, 185018), (112416, 184860), (113760, 182676), (121784, 170640), (123240, 168624), (126468, 164320), (131456, 158085), (136512, 152230), (137007, 151680), (138645, 149888), (140520, 147888)]