20211840

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 288

約数和(自身を含む): 79361100

約数和(自身を除く): 59149260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 29, 30, 32, 33, 36, 40, 44, 45, 48, 55, 58, 60, 64, 66, 72, 80, 87, 88, 90, 96, 99, 110, 116, 120, 121, 128, 132, 144, 145, 160, 165, 174, 176, 180, 192, 198, 220, 232, 240, 242, 261, 264, 288, 290, 319, 320, 330, 348, 352, 360, 363, 384, 396, 435, 440, 464, 480, 484, 495, 522, 528, 576, 580, 605, 638, 640, 660, 696, 704, 720, 726, 792, 870, 880, 928, 957, 960, 968, 990, 1044, 1056, 1089, 1152, 1160, 1210, 1276, 1305, 1320, 1392, 1408, 1440, 1452, 1584, 1595, 1740, 1760, 1815, 1856, 1914, 1920, 1936, 1980, 2088, 2112, 2178, 2320, 2420, 2552, 2610, 2640, 2784, 2871, 2880, 2904, 3168, 3190, 3480, 3509, 3520, 3630, 3712, 3828, 3872, 3960, 4176, 4224, 4356, 4640, 4785, 4840, 5104, 5220, 5280, 5445, 5568, 5742, 5760, 5808, 6336, 6380, 6960, 7018, 7040, 7260, 7656, 7744, 7920, 8352, 8712, 9280, 9570, 9680, 10208, 10440, 10527, 10560, 10890, 11136, 11484, 11616, 12672, 12760, 13920, 14036, 14355, 14520, 15312, 15488, 15840, 16704, 17424, 17545, 18560, 19140, 19360, 20416, 20880, 21054, 21120, 21780, 22968, 23232, 25520, 27840, 28072, 28710, 29040, 30624, 31581, 31680, 33408, 34848, 35090, 38280, 38720, 40832, 41760, 42108, 43560, 45936, 46464, 51040, 52635, 55680, 56144, 57420, 58080, 61248, 63162, 63360, 69696, 70180, 76560, 77440, 83520, 84216, 87120, 91872, 102080, 105270, 112288, 114840, 116160, 122496, 126324, 139392, 140360, 153120, 157905, 167040, 168432, 174240, 183744, 204160, 210540, 224576, 229680, 232320, 252648, 280720, 306240, 315810, 336864, 348480, 367488, 421080, 449152, 459360, 505296, 561440, 612480, 631620, 673728, 696960, 842160, 918720, 1010592, 1122880, 1263240, 1347456, 1684320, 1837440, 2021184, 2245760, 2526480, 3368640, 4042368, 5052960, 6737280, 10105920, 20211840]

約数ペア:

[(1, 20211840), (2, 10105920), (3, 6737280), (4, 5052960), (5, 4042368), (6, 3368640), (8, 2526480), (9, 2245760), (10, 2021184), (11, 1837440), (12, 1684320), (15, 1347456), (16, 1263240), (18, 1122880), (20, 1010592), (22, 918720), (24, 842160), (29, 696960), (30, 673728), (32, 631620), (33, 612480), (36, 561440), (40, 505296), (44, 459360), (45, 449152), (48, 421080), (55, 367488), (58, 348480), (60, 336864), (64, 315810), (66, 306240), (72, 280720), (80, 252648), (87, 232320), (88, 229680), (90, 224576), (96, 210540), (99, 204160), (110, 183744), (116, 174240), (120, 168432), (121, 167040), (128, 157905), (132, 153120), (144, 140360), (145, 139392), (160, 126324), (165, 122496), (174, 116160), (176, 114840), (180, 112288), (192, 105270), (198, 102080), (220, 91872), (232, 87120), (240, 84216), (242, 83520), (261, 77440), (264, 76560), (288, 70180), (290, 69696), (319, 63360), (320, 63162), (330, 61248), (348, 58080), (352, 57420), (360, 56144), (363, 55680), (384, 52635), (396, 51040), (435, 46464), (440, 45936), (464, 43560), (480, 42108), (484, 41760), (495, 40832), (522, 38720), (528, 38280), (576, 35090), (580, 34848), (605, 33408), (638, 31680), (640, 31581), (660, 30624), (696, 29040), (704, 28710), (720, 28072), (726, 27840), (792, 25520), (870, 23232), (880, 22968), (928, 21780), (957, 21120), (960, 21054), (968, 20880), (990, 20416), (1044, 19360), (1056, 19140), (1089, 18560), (1152, 17545), (1160, 17424), (1210, 16704), (1276, 15840), (1305, 15488), (1320, 15312), (1392, 14520), (1408, 14355), (1440, 14036), (1452, 13920), (1584, 12760), (1595, 12672), (1740, 11616), (1760, 11484), (1815, 11136), (1856, 10890), (1914, 10560), (1920, 10527), (1936, 10440), (1980, 10208), (2088, 9680), (2112, 9570), (2178, 9280), (2320, 8712), (2420, 8352), (2552, 7920), (2610, 7744), (2640, 7656), (2784, 7260), (2871, 7040), (2880, 7018), (2904, 6960), (3168, 6380), (3190, 6336), (3480, 5808), (3509, 5760), (3520, 5742), (3630, 5568), (3712, 5445), (3828, 5280), (3872, 5220), (3960, 5104), (4176, 4840), (4224, 4785), (4356, 4640)]