640325088

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:679

約数の個数: 240

約数和(自身を含む): 2096873856

約数和(自身を除く): 1456548768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 31, 32, 36, 39, 48, 52, 54, 62, 72, 78, 81, 93, 96, 104, 108, 117, 124, 144, 156, 162, 186, 208, 216, 234, 248, 279, 288, 312, 324, 351, 372, 403, 416, 432, 468, 496, 558, 613, 624, 648, 702, 744, 806, 837, 864, 936, 992, 1053, 1116, 1209, 1226, 1248, 1296, 1404, 1488, 1612, 1674, 1839, 1872, 2106, 2232, 2418, 2452, 2511, 2592, 2808, 2976, 3224, 3348, 3627, 3678, 3744, 4212, 4464, 4836, 4904, 5022, 5517, 5616, 6448, 6696, 7254, 7356, 7969, 8424, 8928, 9672, 9808, 10044, 10881, 11034, 11232, 12896, 13392, 14508, 14712, 15938, 16551, 16848, 19003, 19344, 19616, 20088, 21762, 22068, 23907, 26784, 29016, 29424, 31876, 32643, 33102, 33696, 38006, 38688, 40176, 43524, 44136, 47814, 49653, 57009, 58032, 58848, 63752, 65286, 66204, 71721, 76012, 80352, 87048, 88272, 95628, 99306, 114018, 116064, 127504, 130572, 132408, 143442, 152024, 171027, 174096, 176544, 191256, 198612, 215163, 228036, 247039, 255008, 261144, 264816, 286884, 304048, 342054, 348192, 382512, 397224, 430326, 456072, 494078, 513081, 522288, 529632, 573768, 608096, 645489, 684108, 741117, 765024, 794448, 860652, 912144, 988156, 1026162, 1044576, 1147536, 1290978, 1368216, 1482234, 1539243, 1588896, 1721304, 1824288, 1976312, 2052324, 2223351, 2295072, 2581956, 2736432, 2964468, 3078486, 3442608, 3952624, 4104648, 4446702, 5163912, 5472864, 5928936, 6156972, 6670053, 6885216, 7905248, 8209296, 8893404, 10327824, 11857872, 12313944, 13340106, 16418592, 17786808, 20010159, 20655648, 23715744, 24627888, 26680212, 35573616, 40020318, 49255776, 53360424, 71147232, 80040636, 106720848, 160081272, 213441696, 320162544, 640325088]

約数ペア:

[(1, 640325088), (2, 320162544), (3, 213441696), (4, 160081272), (6, 106720848), (8, 80040636), (9, 71147232), (12, 53360424), (13, 49255776), (16, 40020318), (18, 35573616), (24, 26680212), (26, 24627888), (27, 23715744), (31, 20655648), (32, 20010159), (36, 17786808), (39, 16418592), (48, 13340106), (52, 12313944), (54, 11857872), (62, 10327824), (72, 8893404), (78, 8209296), (81, 7905248), (93, 6885216), (96, 6670053), (104, 6156972), (108, 5928936), (117, 5472864), (124, 5163912), (144, 4446702), (156, 4104648), (162, 3952624), (186, 3442608), (208, 3078486), (216, 2964468), (234, 2736432), (248, 2581956), (279, 2295072), (288, 2223351), (312, 2052324), (324, 1976312), (351, 1824288), (372, 1721304), (403, 1588896), (416, 1539243), (432, 1482234), (468, 1368216), (496, 1290978), (558, 1147536), (613, 1044576), (624, 1026162), (648, 988156), (702, 912144), (744, 860652), (806, 794448), (837, 765024), (864, 741117), (936, 684108), (992, 645489), (1053, 608096), (1116, 573768), (1209, 529632), (1226, 522288), (1248, 513081), (1296, 494078), (1404, 456072), (1488, 430326), (1612, 397224), (1674, 382512), (1839, 348192), (1872, 342054), (2106, 304048), (2232, 286884), (2418, 264816), (2452, 261144), (2511, 255008), (2592, 247039), (2808, 228036), (2976, 215163), (3224, 198612), (3348, 191256), (3627, 176544), (3678, 174096), (3744, 171027), (4212, 152024), (4464, 143442), (4836, 132408), (4904, 130572), (5022, 127504), (5517, 116064), (5616, 114018), (6448, 99306), (6696, 95628), (7254, 88272), (7356, 87048), (7969, 80352), (8424, 76012), (8928, 71721), (9672, 66204), (9808, 65286), (10044, 63752), (10881, 58848), (11034, 58032), (11232, 57009), (12896, 49653), (13392, 47814), (14508, 44136), (14712, 43524), (15938, 40176), (16551, 38688), (16848, 38006), (19003, 33696), (19344, 33102), (19616, 32643), (20088, 31876), (21762, 29424), (22068, 29016), (23907, 26784)]