20917854720

素因数分解:

$2^9\times 3^4\times 5^1\times 7^1\times {\mathrm{14411}}^1$

素因数の和:14453

約数の個数: 400

約数和(自身を含む): 85630108608

約数和(自身を除く): 64712253888

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, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 324, 336, 360, 378, 384, 405, 420, 432, 448, 480, 504, 512, 540, 560, 567, 576, 630, 640, 648, 672, 720, 756, 768, 810, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1134, 1152, 1260, 1280, 1296, 1344, 1440, 1512, 1536, 1620, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2268, 2304, 2520, 2560, 2592, 2688, 2835, 2880, 3024, 3240, 3360, 3456, 3584, 3780, 3840, 4032, 4320, 4480, 4536, 4608, 5040, 5184, 5376, 5670, 5760, 6048, 6480, 6720, 6912, 7560, 7680, 8064, 8640, 8960, 9072, 10080, 10368, 10752, 11340, 11520, 12096, 12960, 13440, 13824, 14411, 15120, 16128, 17280, 17920, 18144, 20160, 20736, 22680, 23040, 24192, 25920, 26880, 28822, 30240, 32256, 34560, 36288, 40320, 41472, 43233, 45360, 48384, 51840, 53760, 57644, 60480, 69120, 72055, 72576, 80640, 86466, 90720, 96768, 100877, 103680, 115288, 120960, 129699, 144110, 145152, 161280, 172932, 181440, 201754, 207360, 216165, 230576, 241920, 259398, 288220, 290304, 302631, 345864, 362880, 389097, 403508, 432330, 461152, 483840, 504385, 518796, 576440, 605262, 648495, 691728, 725760, 778194, 807016, 864660, 907893, 922304, 1008770, 1037592, 1152880, 1167291, 1210524, 1296990, 1383456, 1451520, 1513155, 1556388, 1614032, 1729320, 1815786, 1844608, 1945485, 2017540, 2075184, 2305760, 2334582, 2421048, 2593980, 2723679, 2766912, 3026310, 3112776, 3228064, 3458640, 3631572, 3689216, 3890970, 4035080, 4150368, 4539465, 4611520, 4669164, 4842096, 5187960, 5447358, 5533824, 5836455, 6052620, 6225552, 6456128, 6917280, 7263144, 7378432, 7781940, 8070160, 8171037, 8300736, 9078930, 9223040, 9338328, 9684192, 10375920, 10894716, 11067648, 11672910, 12105240, 12451104, 12912256, 13618395, 13834560, 14526288, 15563880, 16140320, 16342074, 16601472, 18157860, 18446080, 18676656, 19368384, 20751840, 21789432, 22135296, 23345820, 24210480, 24902208, 25824512, 27236790, 27669120, 29052576, 31127760, 32280640, 32684148, 33202944, 36315720, 36892160, 37353312, 38736768, 40855185, 41503680, 43578864, 46691640, 48420960, 49804416, 51649024, 54473580, 55338240, 58105152, 62255520, 64561280, 65368296, 66405888, 72631440, 74706624, 77473536, 81710370, 83007360, 87157728, 93383280, 96841920, 99608832, 108947160, 110676480, 116210304, 124511040, 129122560, 130736592, 145262880, 149413248, 154947072, 163420740, 166014720, 174315456, 186766560, 193683840, 199217664, 217894320, 232420608, 249022080, 258245120, 261473184, 290525760, 298826496, 326841480, 332029440, 348630912, 373533120, 387367680, 435788640, 464841216, 498044160, 522946368, 581051520, 597652992, 653682960, 697261824, 747066240, 774735360, 871577280, 996088320, 1045892736, 1162103040, 1307365920, 1394523648, 1494132480, 1743154560, 2091785472, 2324206080, 2614731840, 2988264960, 3486309120, 4183570944, 5229463680, 6972618240, 10458927360, 20917854720]

約数ペア:

[(1, 20917854720), (2, 10458927360), (3, 6972618240), (4, 5229463680), (5, 4183570944), (6, 3486309120), (7, 2988264960), (8, 2614731840), (9, 2324206080), (10, 2091785472), (12, 1743154560), (14, 1494132480), (15, 1394523648), (16, 1307365920), (18, 1162103040), (20, 1045892736), (21, 996088320), (24, 871577280), (27, 774735360), (28, 747066240), (30, 697261824), (32, 653682960), (35, 597652992), (36, 581051520), (40, 522946368), (42, 498044160), (45, 464841216), (48, 435788640), (54, 387367680), (56, 373533120), (60, 348630912), (63, 332029440), (64, 326841480), (70, 298826496), (72, 290525760), (80, 261473184), (81, 258245120), (84, 249022080), (90, 232420608), (96, 217894320), (105, 199217664), (108, 193683840), (112, 186766560), (120, 174315456), (126, 166014720), (128, 163420740), (135, 154947072), (140, 149413248), (144, 145262880), (160, 130736592), (162, 129122560), (168, 124511040), (180, 116210304), (189, 110676480), (192, 108947160), (210, 99608832), (216, 96841920), (224, 93383280), (240, 87157728), (252, 83007360), (256, 81710370), (270, 77473536), (280, 74706624), (288, 72631440), (315, 66405888), (320, 65368296), (324, 64561280), (336, 62255520), (360, 58105152), (378, 55338240), (384, 54473580), (405, 51649024), (420, 49804416), (432, 48420960), (448, 46691640), (480, 43578864), (504, 41503680), (512, 40855185), (540, 38736768), (560, 37353312), (567, 36892160), (576, 36315720), (630, 33202944), (640, 32684148), (648, 32280640), (672, 31127760), (720, 29052576), (756, 27669120), (768, 27236790), (810, 25824512), (840, 24902208), (864, 24210480), (896, 23345820), (945, 22135296), (960, 21789432), (1008, 20751840), (1080, 19368384), (1120, 18676656), (1134, 18446080), (1152, 18157860), (1260, 16601472), (1280, 16342074), (1296, 16140320), (1344, 15563880), (1440, 14526288), (1512, 13834560), (1536, 13618395), (1620, 12912256), (1680, 12451104), (1728, 12105240), (1792, 11672910), (1890, 11067648), (1920, 10894716), (2016, 10375920), (2160, 9684192), (2240, 9338328), (2268, 9223040), (2304, 9078930), (2520, 8300736), (2560, 8171037), (2592, 8070160), (2688, 7781940), (2835, 7378432), (2880, 7263144), (3024, 6917280), (3240, 6456128), (3360, 6225552), (3456, 6052620), (3584, 5836455), (3780, 5533824), (3840, 5447358), (4032, 5187960), (4320, 4842096), (4480, 4669164), (4536, 4611520), (4608, 4539465), (5040, 4150368), (5184, 4035080), (5376, 3890970), (5670, 3689216), (5760, 3631572), (6048, 3458640), (6480, 3228064), (6720, 3112776), (6912, 3026310), (7560, 2766912), (7680, 2723679), (8064, 2593980), (8640, 2421048), (8960, 2334582), (9072, 2305760), (10080, 2075184), (10368, 2017540), (10752, 1945485), (11340, 1844608), (11520, 1815786), (12096, 1729320), (12960, 1614032), (13440, 1556388), (13824, 1513155), (14411, 1451520), (15120, 1383456), (16128, 1296990), (17280, 1210524), (17920, 1167291), (18144, 1152880), (20160, 1037592), (20736, 1008770), (22680, 922304), (23040, 907893), (24192, 864660), (25920, 807016), (26880, 778194), (28822, 725760), (30240, 691728), (32256, 648495), (34560, 605262), (36288, 576440), (40320, 518796), (41472, 504385), (43233, 483840), (45360, 461152), (48384, 432330), (51840, 403508), (53760, 389097), (57644, 362880), (60480, 345864), (69120, 302631), (72055, 290304), (72576, 288220), (80640, 259398), (86466, 241920), (90720, 230576), (96768, 216165), (100877, 207360), (103680, 201754), (115288, 181440), (120960, 172932), (129699, 161280), (144110, 145152)]