640910592

素因数分解:

$2^8\times 3^2\times 7^3\times {\mathrm{811}}^1$

素因数の和:854

約数の個数: 216

約数和(自身を含む): 2157646400

約数和(自身を除く): 1516735808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 64, 72, 84, 96, 98, 112, 126, 128, 144, 147, 168, 192, 196, 224, 252, 256, 288, 294, 336, 343, 384, 392, 441, 448, 504, 576, 588, 672, 686, 768, 784, 811, 882, 896, 1008, 1029, 1152, 1176, 1344, 1372, 1568, 1622, 1764, 1792, 2016, 2058, 2304, 2352, 2433, 2688, 2744, 3087, 3136, 3244, 3528, 4032, 4116, 4704, 4866, 5376, 5488, 5677, 6174, 6272, 6488, 7056, 7299, 8064, 8232, 9408, 9732, 10976, 11354, 12348, 12544, 12976, 14112, 14598, 16128, 16464, 17031, 18816, 19464, 21952, 22708, 24696, 25952, 28224, 29196, 32928, 34062, 37632, 38928, 39739, 43904, 45416, 49392, 51093, 51904, 56448, 58392, 65856, 68124, 77856, 79478, 87808, 90832, 98784, 102186, 103808, 112896, 116784, 119217, 131712, 136248, 155712, 158956, 181664, 197568, 204372, 207616, 233568, 238434, 263424, 272496, 278173, 311424, 317912, 357651, 363328, 395136, 408744, 467136, 476868, 544992, 556346, 622848, 635824, 715302, 726656, 790272, 817488, 834519, 934272, 953736, 1089984, 1112692, 1271648, 1430604, 1453312, 1634976, 1669038, 1868544, 1907472, 2179968, 2225384, 2503557, 2543296, 2861208, 3269952, 3338076, 3814944, 4359936, 4450768, 5007114, 5086592, 5722416, 6539904, 6676152, 7629888, 8901536, 10014228, 10173184, 11444832, 13079808, 13352304, 15259776, 17803072, 20028456, 22889664, 26704608, 30519552, 35606144, 40056912, 45779328, 53409216, 71212288, 80113824, 91558656, 106818432, 160227648, 213636864, 320455296, 640910592]

約数ペア:

[(1, 640910592), (2, 320455296), (3, 213636864), (4, 160227648), (6, 106818432), (7, 91558656), (8, 80113824), (9, 71212288), (12, 53409216), (14, 45779328), (16, 40056912), (18, 35606144), (21, 30519552), (24, 26704608), (28, 22889664), (32, 20028456), (36, 17803072), (42, 15259776), (48, 13352304), (49, 13079808), (56, 11444832), (63, 10173184), (64, 10014228), (72, 8901536), (84, 7629888), (96, 6676152), (98, 6539904), (112, 5722416), (126, 5086592), (128, 5007114), (144, 4450768), (147, 4359936), (168, 3814944), (192, 3338076), (196, 3269952), (224, 2861208), (252, 2543296), (256, 2503557), (288, 2225384), (294, 2179968), (336, 1907472), (343, 1868544), (384, 1669038), (392, 1634976), (441, 1453312), (448, 1430604), (504, 1271648), (576, 1112692), (588, 1089984), (672, 953736), (686, 934272), (768, 834519), (784, 817488), (811, 790272), (882, 726656), (896, 715302), (1008, 635824), (1029, 622848), (1152, 556346), (1176, 544992), (1344, 476868), (1372, 467136), (1568, 408744), (1622, 395136), (1764, 363328), (1792, 357651), (2016, 317912), (2058, 311424), (2304, 278173), (2352, 272496), (2433, 263424), (2688, 238434), (2744, 233568), (3087, 207616), (3136, 204372), (3244, 197568), (3528, 181664), (4032, 158956), (4116, 155712), (4704, 136248), (4866, 131712), (5376, 119217), (5488, 116784), (5677, 112896), (6174, 103808), (6272, 102186), (6488, 98784), (7056, 90832), (7299, 87808), (8064, 79478), (8232, 77856), (9408, 68124), (9732, 65856), (10976, 58392), (11354, 56448), (12348, 51904), (12544, 51093), (12976, 49392), (14112, 45416), (14598, 43904), (16128, 39739), (16464, 38928), (17031, 37632), (18816, 34062), (19464, 32928), (21952, 29196), (22708, 28224), (24696, 25952)]