20809475809920

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{516108031}}^1$

素因数の和:516108063

約数の個数: 192

約数和(自身を含む): 82123110051840

約数和(自身を除く): 61313634241920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6720, 8064, 10080, 13440, 20160, 40320, 516108031, 1032216062, 1548324093, 2064432124, 2580540155, 3096648186, 3612756217, 4128864248, 4644972279, 5161080310, 6193296372, 7225512434, 7741620465, 8257728496, 9289944558, 10322160620, 10838268651, 12386592744, 14451024868, 15483240930, 16515456992, 18063781085, 18579889116, 20644321240, 21676537302, 23224861395, 24773185488, 28902049736, 30966481860, 32514805953, 33030913984, 36127562170, 37159778232, 41288642480, 43353074604, 46449722790, 49546370976, 54191343255, 57804099472, 61932963720, 65029611906, 66061827968, 72255124340, 74319556464, 82577284960, 86706149208, 92899445580, 99092741952, 108382686510, 115608198944, 123865927440, 130059223812, 144510248680, 148639112928, 162574029765, 165154569920, 173412298416, 185798891160, 198185483904, 216765373020, 231216397888, 247731854880, 260118447624, 289020497360, 297278225856, 325148059530, 330309139840, 346824596832, 371597782320, 433530746040, 462432795776, 495463709760, 520236895248, 578040994720, 594556451712, 650296119060, 693649193664, 743195564640, 867061492080, 990927419520, 1040473790496, 1156081989440, 1300592238120, 1387298387328, 1486391129280, 1734122984160, 2080947580992, 2312163978880, 2601184476240, 2972782258560, 3468245968320, 4161895161984, 5202368952480, 6936491936640, 10404737904960, 20809475809920]

約数ペア:

[(1, 20809475809920), (2, 10404737904960), (3, 6936491936640), (4, 5202368952480), (5, 4161895161984), (6, 3468245968320), (7, 2972782258560), (8, 2601184476240), (9, 2312163978880), (10, 2080947580992), (12, 1734122984160), (14, 1486391129280), (15, 1387298387328), (16, 1300592238120), (18, 1156081989440), (20, 1040473790496), (21, 990927419520), (24, 867061492080), (28, 743195564640), (30, 693649193664), (32, 650296119060), (35, 594556451712), (36, 578040994720), (40, 520236895248), (42, 495463709760), (45, 462432795776), (48, 433530746040), (56, 371597782320), (60, 346824596832), (63, 330309139840), (64, 325148059530), (70, 297278225856), (72, 289020497360), (80, 260118447624), (84, 247731854880), (90, 231216397888), (96, 216765373020), (105, 198185483904), (112, 185798891160), (120, 173412298416), (126, 165154569920), (128, 162574029765), (140, 148639112928), (144, 144510248680), (160, 130059223812), (168, 123865927440), (180, 115608198944), (192, 108382686510), (210, 99092741952), (224, 92899445580), (240, 86706149208), (252, 82577284960), (280, 74319556464), (288, 72255124340), (315, 66061827968), (320, 65029611906), (336, 61932963720), (360, 57804099472), (384, 54191343255), (420, 49546370976), (448, 46449722790), (480, 43353074604), (504, 41288642480), (560, 37159778232), (576, 36127562170), (630, 33030913984), (640, 32514805953), (672, 30966481860), (720, 28902049736), (840, 24773185488), (896, 23224861395), (960, 21676537302), (1008, 20644321240), (1120, 18579889116), (1152, 18063781085), (1260, 16515456992), (1344, 15483240930), (1440, 14451024868), (1680, 12386592744), (1920, 10838268651), (2016, 10322160620), (2240, 9289944558), (2520, 8257728496), (2688, 7741620465), (2880, 7225512434), (3360, 6193296372), (4032, 5161080310), (4480, 4644972279), (5040, 4128864248), (5760, 3612756217), (6720, 3096648186), (8064, 2580540155), (10080, 2064432124), (13440, 1548324093), (20160, 1032216062), (40320, 516108031)]