639360864

素因数分解:

$2^5\times 3^4\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 240

約数和(自身を含む): 1985639040

約数和(自身を除く): 1346278176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 72, 73, 81, 93, 96, 108, 109, 124, 144, 146, 162, 186, 216, 218, 219, 248, 279, 288, 292, 324, 327, 372, 432, 436, 438, 496, 558, 584, 648, 654, 657, 744, 837, 864, 872, 876, 981, 992, 1116, 1168, 1296, 1308, 1314, 1488, 1674, 1744, 1752, 1962, 1971, 2232, 2263, 2336, 2511, 2592, 2616, 2628, 2943, 2976, 3348, 3379, 3488, 3504, 3924, 3942, 4464, 4526, 5022, 5232, 5256, 5886, 5913, 6696, 6758, 6789, 7008, 7848, 7884, 7957, 8829, 8928, 9052, 10044, 10137, 10464, 10512, 11772, 11826, 13392, 13516, 13578, 15696, 15768, 15914, 17658, 18104, 20088, 20274, 20367, 21024, 23544, 23652, 23871, 26784, 27032, 27156, 30411, 31392, 31536, 31828, 35316, 36208, 40176, 40548, 40734, 47088, 47304, 47742, 54064, 54312, 60822, 61101, 63072, 63656, 70632, 71613, 72416, 80352, 81096, 81468, 91233, 94176, 94608, 95484, 108128, 108624, 121644, 122202, 127312, 141264, 143226, 162192, 162936, 182466, 183303, 189216, 190968, 214839, 217248, 243288, 244404, 246667, 254624, 273699, 282528, 286452, 324384, 325872, 364932, 366606, 381936, 429678, 486576, 488808, 493334, 547398, 572904, 644517, 651744, 729864, 733212, 740001, 763872, 859356, 973152, 977616, 986668, 1094796, 1145808, 1289034, 1459728, 1466424, 1480002, 1718712, 1955232, 1973336, 2189592, 2220003, 2291616, 2578068, 2919456, 2932848, 2960004, 3437424, 3946672, 4379184, 4440006, 5156136, 5865696, 5920008, 6660009, 6874848, 7893344, 8758368, 8880012, 10312272, 11840016, 13320018, 17760024, 19980027, 20624544, 23680032, 26640036, 35520048, 39960054, 53280072, 71040096, 79920108, 106560144, 159840216, 213120288, 319680432, 639360864]

約数ペア:

[(1, 639360864), (2, 319680432), (3, 213120288), (4, 159840216), (6, 106560144), (8, 79920108), (9, 71040096), (12, 53280072), (16, 39960054), (18, 35520048), (24, 26640036), (27, 23680032), (31, 20624544), (32, 19980027), (36, 17760024), (48, 13320018), (54, 11840016), (62, 10312272), (72, 8880012), (73, 8758368), (81, 7893344), (93, 6874848), (96, 6660009), (108, 5920008), (109, 5865696), (124, 5156136), (144, 4440006), (146, 4379184), (162, 3946672), (186, 3437424), (216, 2960004), (218, 2932848), (219, 2919456), (248, 2578068), (279, 2291616), (288, 2220003), (292, 2189592), (324, 1973336), (327, 1955232), (372, 1718712), (432, 1480002), (436, 1466424), (438, 1459728), (496, 1289034), (558, 1145808), (584, 1094796), (648, 986668), (654, 977616), (657, 973152), (744, 859356), (837, 763872), (864, 740001), (872, 733212), (876, 729864), (981, 651744), (992, 644517), (1116, 572904), (1168, 547398), (1296, 493334), (1308, 488808), (1314, 486576), (1488, 429678), (1674, 381936), (1744, 366606), (1752, 364932), (1962, 325872), (1971, 324384), (2232, 286452), (2263, 282528), (2336, 273699), (2511, 254624), (2592, 246667), (2616, 244404), (2628, 243288), (2943, 217248), (2976, 214839), (3348, 190968), (3379, 189216), (3488, 183303), (3504, 182466), (3924, 162936), (3942, 162192), (4464, 143226), (4526, 141264), (5022, 127312), (5232, 122202), (5256, 121644), (5886, 108624), (5913, 108128), (6696, 95484), (6758, 94608), (6789, 94176), (7008, 91233), (7848, 81468), (7884, 81096), (7957, 80352), (8829, 72416), (8928, 71613), (9052, 70632), (10044, 63656), (10137, 63072), (10464, 61101), (10512, 60822), (11772, 54312), (11826, 54064), (13392, 47742), (13516, 47304), (13578, 47088), (15696, 40734), (15768, 40548), (15914, 40176), (17658, 36208), (18104, 35316), (20088, 31828), (20274, 31536), (20367, 31392), (21024, 30411), (23544, 27156), (23652, 27032), (23871, 26784)]