638440992

素因数分解:

$2^5\times 3^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:341

約数の個数: 288

約数和(自身を含む): 2217196800

約数和(自身を除く): 1578755808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 28, 32, 36, 42, 46, 48, 49, 56, 63, 69, 72, 84, 92, 96, 98, 112, 126, 138, 144, 147, 161, 168, 184, 196, 207, 224, 252, 276, 281, 288, 294, 322, 336, 343, 368, 392, 414, 441, 483, 504, 552, 562, 588, 644, 672, 686, 736, 784, 828, 843, 882, 966, 1008, 1029, 1104, 1124, 1127, 1176, 1288, 1372, 1449, 1568, 1656, 1686, 1764, 1932, 1967, 2016, 2058, 2208, 2248, 2254, 2352, 2529, 2576, 2744, 2898, 3087, 3312, 3372, 3381, 3528, 3864, 3934, 4116, 4496, 4508, 4704, 5058, 5152, 5488, 5796, 5901, 6174, 6463, 6624, 6744, 6762, 7056, 7728, 7868, 7889, 8232, 8992, 9016, 10116, 10143, 10976, 11592, 11802, 12348, 12926, 13488, 13524, 13769, 14112, 15456, 15736, 15778, 16464, 17703, 18032, 19389, 20232, 20286, 23184, 23604, 23667, 24696, 25852, 26976, 27048, 27538, 31472, 31556, 32928, 35406, 36064, 38778, 40464, 40572, 41307, 45241, 46368, 47208, 47334, 49392, 51704, 54096, 55076, 58167, 62944, 63112, 70812, 71001, 77556, 80928, 81144, 82614, 90482, 94416, 94668, 96383, 98784, 103408, 108192, 110152, 116334, 123921, 126224, 135723, 141624, 142002, 155112, 162288, 165228, 180964, 188832, 189336, 192766, 206816, 220304, 232668, 247842, 252448, 271446, 283248, 284004, 289149, 310224, 316687, 324576, 330456, 361928, 378672, 385532, 407169, 440608, 465336, 495684, 542892, 566496, 568008, 578298, 620448, 633374, 660912, 723856, 757344, 771064, 814338, 867447, 930672, 950061, 991368, 1085784, 1136016, 1156596, 1266748, 1321824, 1447712, 1542128, 1628676, 1734894, 1861344, 1900122, 1982736, 2171568, 2216809, 2272032, 2313192, 2533496, 2850183, 3084256, 3257352, 3469788, 3800244, 3965472, 4343136, 4433618, 4626384, 5066992, 5700366, 6514704, 6650427, 6939576, 7600488, 8867236, 9252768, 10133984, 11400732, 13029408, 13300854, 13879152, 15200976, 17734472, 19951281, 22801464, 26601708, 27758304, 30401952, 35468944, 39902562, 45602928, 53203416, 70937888, 79805124, 91205856, 106406832, 159610248, 212813664, 319220496, 638440992]

約数ペア:

[(1, 638440992), (2, 319220496), (3, 212813664), (4, 159610248), (6, 106406832), (7, 91205856), (8, 79805124), (9, 70937888), (12, 53203416), (14, 45602928), (16, 39902562), (18, 35468944), (21, 30401952), (23, 27758304), (24, 26601708), (28, 22801464), (32, 19951281), (36, 17734472), (42, 15200976), (46, 13879152), (48, 13300854), (49, 13029408), (56, 11400732), (63, 10133984), (69, 9252768), (72, 8867236), (84, 7600488), (92, 6939576), (96, 6650427), (98, 6514704), (112, 5700366), (126, 5066992), (138, 4626384), (144, 4433618), (147, 4343136), (161, 3965472), (168, 3800244), (184, 3469788), (196, 3257352), (207, 3084256), (224, 2850183), (252, 2533496), (276, 2313192), (281, 2272032), (288, 2216809), (294, 2171568), (322, 1982736), (336, 1900122), (343, 1861344), (368, 1734894), (392, 1628676), (414, 1542128), (441, 1447712), (483, 1321824), (504, 1266748), (552, 1156596), (562, 1136016), (588, 1085784), (644, 991368), (672, 950061), (686, 930672), (736, 867447), (784, 814338), (828, 771064), (843, 757344), (882, 723856), (966, 660912), (1008, 633374), (1029, 620448), (1104, 578298), (1124, 568008), (1127, 566496), (1176, 542892), (1288, 495684), (1372, 465336), (1449, 440608), (1568, 407169), (1656, 385532), (1686, 378672), (1764, 361928), (1932, 330456), (1967, 324576), (2016, 316687), (2058, 310224), (2208, 289149), (2248, 284004), (2254, 283248), (2352, 271446), (2529, 252448), (2576, 247842), (2744, 232668), (2898, 220304), (3087, 206816), (3312, 192766), (3372, 189336), (3381, 188832), (3528, 180964), (3864, 165228), (3934, 162288), (4116, 155112), (4496, 142002), (4508, 141624), (4704, 135723), (5058, 126224), (5152, 123921), (5488, 116334), (5796, 110152), (5901, 108192), (6174, 103408), (6463, 98784), (6624, 96383), (6744, 94668), (6762, 94416), (7056, 90482), (7728, 82614), (7868, 81144), (7889, 80928), (8232, 77556), (8992, 71001), (9016, 70812), (10116, 63112), (10143, 62944), (10976, 58167), (11592, 55076), (11802, 54096), (12348, 51704), (12926, 49392), (13488, 47334), (13524, 47208), (13769, 46368), (14112, 45241), (15456, 41307), (15736, 40572), (15778, 40464), (16464, 38778), (17703, 36064), (18032, 35406), (19389, 32928), (20232, 31556), (20286, 31472), (23184, 27538), (23604, 27048), (23667, 26976), (24696, 25852)]