1990393440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:350

約数の個数: 384

約数和(自身を含む): 7510745088

約数和(自身を除く): 5520351648

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 96, 97, 105, 112, 120, 124, 140, 155, 160, 168, 186, 194, 197, 210, 217, 224, 240, 248, 280, 291, 310, 336, 372, 388, 394, 420, 434, 465, 480, 485, 496, 560, 582, 591, 620, 651, 672, 679, 744, 776, 788, 840, 868, 930, 970, 985, 992, 1085, 1120, 1164, 1182, 1240, 1302, 1358, 1379, 1455, 1488, 1552, 1576, 1680, 1736, 1860, 1940, 1970, 2037, 2170, 2328, 2364, 2480, 2604, 2716, 2758, 2910, 2955, 2976, 3007, 3104, 3152, 3255, 3360, 3395, 3472, 3720, 3880, 3940, 4074, 4137, 4340, 4656, 4728, 4960, 5208, 5432, 5516, 5820, 5910, 6014, 6107, 6304, 6510, 6790, 6895, 6944, 7440, 7760, 7880, 8148, 8274, 8680, 9021, 9312, 9456, 10185, 10416, 10864, 11032, 11640, 11820, 12028, 12214, 13020, 13580, 13790, 14880, 15035, 15520, 15760, 16296, 16548, 17360, 18042, 18321, 18912, 19109, 20370, 20685, 20832, 21049, 21728, 22064, 23280, 23640, 24056, 24428, 26040, 27160, 27580, 30070, 30535, 31520, 32592, 33096, 34720, 36084, 36642, 38218, 40740, 41370, 42098, 42749, 44128, 45105, 46560, 47280, 48112, 48856, 52080, 54320, 55160, 57327, 60140, 61070, 63147, 65184, 66192, 72168, 73284, 76436, 81480, 82740, 84196, 85498, 90210, 91605, 94560, 95545, 96224, 97712, 104160, 105245, 108640, 110320, 114654, 120280, 122140, 126294, 128247, 132384, 133763, 144336, 146568, 152872, 162960, 165480, 168392, 170996, 180420, 183210, 191090, 195424, 210490, 213745, 220640, 229308, 240560, 244280, 252588, 256494, 267526, 286635, 288672, 293136, 305744, 315735, 325920, 330960, 336784, 341992, 360840, 366420, 382180, 401289, 420980, 427490, 458616, 481120, 488560, 505176, 512988, 535052, 573270, 586272, 592379, 611488, 631470, 641235, 661920, 668815, 673568, 683984, 721680, 732840, 764360, 802578, 841960, 854980, 917232, 977120, 1010352, 1025976, 1070104, 1146540, 1184758, 1262940, 1282470, 1337630, 1367968, 1443360, 1465680, 1528720, 1605156, 1683920, 1709960, 1777137, 1834464, 2006445, 2020704, 2051952, 2140208, 2293080, 2369516, 2525880, 2564940, 2675260, 2931360, 2961895, 3057440, 3210312, 3367840, 3419920, 3554274, 4012890, 4103904, 4146653, 4280416, 4586160, 4739032, 5051760, 5129880, 5350520, 5923790, 6420624, 6839840, 7108548, 8025780, 8293306, 8885685, 9172320, 9478064, 10103520, 10259760, 10701040, 11847580, 12439959, 12841248, 14217096, 16051560, 16586612, 17771370, 18956128, 20519520, 20733265, 21402080, 23695160, 24879918, 28434192, 32103120, 33173224, 35542740, 41466530, 47390320, 49759836, 56868384, 62199795, 64206240, 66346448, 71085480, 82933060, 94780640, 99519672, 124399590, 132692896, 142170960, 165866120, 199039344, 248799180, 284341920, 331732240, 398078688, 497598360, 663464480, 995196720, 1990393440]

約数ペア:

[(1, 1990393440), (2, 995196720), (3, 663464480), (4, 497598360), (5, 398078688), (6, 331732240), (7, 284341920), (8, 248799180), (10, 199039344), (12, 165866120), (14, 142170960), (15, 132692896), (16, 124399590), (20, 99519672), (21, 94780640), (24, 82933060), (28, 71085480), (30, 66346448), (31, 64206240), (32, 62199795), (35, 56868384), (40, 49759836), (42, 47390320), (48, 41466530), (56, 35542740), (60, 33173224), (62, 32103120), (70, 28434192), (80, 24879918), (84, 23695160), (93, 21402080), (96, 20733265), (97, 20519520), (105, 18956128), (112, 17771370), (120, 16586612), (124, 16051560), (140, 14217096), (155, 12841248), (160, 12439959), (168, 11847580), (186, 10701040), (194, 10259760), (197, 10103520), (210, 9478064), (217, 9172320), (224, 8885685), (240, 8293306), (248, 8025780), (280, 7108548), (291, 6839840), (310, 6420624), (336, 5923790), (372, 5350520), (388, 5129880), (394, 5051760), (420, 4739032), (434, 4586160), (465, 4280416), (480, 4146653), (485, 4103904), (496, 4012890), (560, 3554274), (582, 3419920), (591, 3367840), (620, 3210312), (651, 3057440), (672, 2961895), (679, 2931360), (744, 2675260), (776, 2564940), (788, 2525880), (840, 2369516), (868, 2293080), (930, 2140208), (970, 2051952), (985, 2020704), (992, 2006445), (1085, 1834464), (1120, 1777137), (1164, 1709960), (1182, 1683920), (1240, 1605156), (1302, 1528720), (1358, 1465680), (1379, 1443360), (1455, 1367968), (1488, 1337630), (1552, 1282470), (1576, 1262940), (1680, 1184758), (1736, 1146540), (1860, 1070104), (1940, 1025976), (1970, 1010352), (2037, 977120), (2170, 917232), (2328, 854980), (2364, 841960), (2480, 802578), (2604, 764360), (2716, 732840), (2758, 721680), (2910, 683984), (2955, 673568), (2976, 668815), (3007, 661920), (3104, 641235), (3152, 631470), (3255, 611488), (3360, 592379), (3395, 586272), (3472, 573270), (3720, 535052), (3880, 512988), (3940, 505176), (4074, 488560), (4137, 481120), (4340, 458616), (4656, 427490), (4728, 420980), (4960, 401289), (5208, 382180), (5432, 366420), (5516, 360840), (5820, 341992), (5910, 336784), (6014, 330960), (6107, 325920), (6304, 315735), (6510, 305744), (6790, 293136), (6895, 288672), (6944, 286635), (7440, 267526), (7760, 256494), (7880, 252588), (8148, 244280), (8274, 240560), (8680, 229308), (9021, 220640), (9312, 213745), (9456, 210490), (10185, 195424), (10416, 191090), (10864, 183210), (11032, 180420), (11640, 170996), (11820, 168392), (12028, 165480), (12214, 162960), (13020, 152872), (13580, 146568), (13790, 144336), (14880, 133763), (15035, 132384), (15520, 128247), (15760, 126294), (16296, 122140), (16548, 120280), (17360, 114654), (18042, 110320), (18321, 108640), (18912, 105245), (19109, 104160), (20370, 97712), (20685, 96224), (20832, 95545), (21049, 94560), (21728, 91605), (22064, 90210), (23280, 85498), (23640, 84196), (24056, 82740), (24428, 81480), (26040, 76436), (27160, 73284), (27580, 72168), (30070, 66192), (30535, 65184), (31520, 63147), (32592, 61070), (33096, 60140), (34720, 57327), (36084, 55160), (36642, 54320), (38218, 52080), (40740, 48856), (41370, 48112), (42098, 47280), (42749, 46560), (44128, 45105)]