639441216

素因数分解:

$2^6\times 3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 280

約数和(自身を含む): 2053522944

約数和(自身を除く): 1414081728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 31, 32, 36, 46, 48, 54, 62, 64, 69, 72, 81, 92, 93, 96, 108, 124, 138, 144, 162, 173, 184, 186, 192, 207, 216, 248, 276, 279, 288, 324, 346, 368, 372, 414, 432, 496, 519, 552, 558, 576, 621, 648, 692, 713, 736, 744, 828, 837, 864, 992, 1038, 1104, 1116, 1242, 1296, 1384, 1426, 1472, 1488, 1557, 1656, 1674, 1728, 1863, 1984, 2076, 2139, 2208, 2232, 2484, 2511, 2592, 2768, 2852, 2976, 3114, 3312, 3348, 3726, 3979, 4152, 4278, 4416, 4464, 4671, 4968, 5022, 5184, 5363, 5536, 5704, 5952, 6228, 6417, 6624, 6696, 7452, 7958, 8304, 8556, 8928, 9342, 9936, 10044, 10726, 11072, 11408, 11937, 12456, 12834, 13248, 13392, 14013, 14904, 15916, 16089, 16608, 17112, 17856, 18684, 19251, 19872, 20088, 21452, 22816, 23874, 24912, 25668, 26784, 28026, 29808, 31832, 32178, 33216, 34224, 35811, 37368, 38502, 39744, 40176, 42904, 45632, 47748, 48267, 49824, 51336, 53568, 56052, 57753, 59616, 63664, 64356, 68448, 71622, 74736, 77004, 80352, 85808, 95496, 96534, 99648, 102672, 107433, 112104, 115506, 119232, 123349, 127328, 128712, 136896, 143244, 144801, 149472, 154008, 160704, 171616, 190992, 193068, 205344, 214866, 224208, 231012, 246698, 254656, 257424, 286488, 289602, 298944, 308016, 322299, 343232, 370047, 381984, 386136, 410688, 429732, 434403, 448416, 462024, 493396, 514848, 572976, 579204, 616032, 644598, 740094, 763968, 772272, 859464, 868806, 896832, 924048, 986792, 1029696, 1110141, 1145952, 1158408, 1232064, 1289196, 1480188, 1544544, 1718928, 1737612, 1848096, 1973584, 2220282, 2291904, 2316816, 2578392, 2960376, 3089088, 3330423, 3437856, 3475224, 3696192, 3947168, 4440564, 4633632, 5156784, 5920752, 6660846, 6875712, 6950448, 7894336, 8881128, 9267264, 9991269, 10313568, 11841504, 13321692, 13900896, 17762256, 19982538, 20627136, 23683008, 26643384, 27801792, 35524512, 39965076, 53286768, 71049024, 79930152, 106573536, 159860304, 213147072, 319720608, 639441216]

約数ペア:

[(1, 639441216), (2, 319720608), (3, 213147072), (4, 159860304), (6, 106573536), (8, 79930152), (9, 71049024), (12, 53286768), (16, 39965076), (18, 35524512), (23, 27801792), (24, 26643384), (27, 23683008), (31, 20627136), (32, 19982538), (36, 17762256), (46, 13900896), (48, 13321692), (54, 11841504), (62, 10313568), (64, 9991269), (69, 9267264), (72, 8881128), (81, 7894336), (92, 6950448), (93, 6875712), (96, 6660846), (108, 5920752), (124, 5156784), (138, 4633632), (144, 4440564), (162, 3947168), (173, 3696192), (184, 3475224), (186, 3437856), (192, 3330423), (207, 3089088), (216, 2960376), (248, 2578392), (276, 2316816), (279, 2291904), (288, 2220282), (324, 1973584), (346, 1848096), (368, 1737612), (372, 1718928), (414, 1544544), (432, 1480188), (496, 1289196), (519, 1232064), (552, 1158408), (558, 1145952), (576, 1110141), (621, 1029696), (648, 986792), (692, 924048), (713, 896832), (736, 868806), (744, 859464), (828, 772272), (837, 763968), (864, 740094), (992, 644598), (1038, 616032), (1104, 579204), (1116, 572976), (1242, 514848), (1296, 493396), (1384, 462024), (1426, 448416), (1472, 434403), (1488, 429732), (1557, 410688), (1656, 386136), (1674, 381984), (1728, 370047), (1863, 343232), (1984, 322299), (2076, 308016), (2139, 298944), (2208, 289602), (2232, 286488), (2484, 257424), (2511, 254656), (2592, 246698), (2768, 231012), (2852, 224208), (2976, 214866), (3114, 205344), (3312, 193068), (3348, 190992), (3726, 171616), (3979, 160704), (4152, 154008), (4278, 149472), (4416, 144801), (4464, 143244), (4671, 136896), (4968, 128712), (5022, 127328), (5184, 123349), (5363, 119232), (5536, 115506), (5704, 112104), (5952, 107433), (6228, 102672), (6417, 99648), (6624, 96534), (6696, 95496), (7452, 85808), (7958, 80352), (8304, 77004), (8556, 74736), (8928, 71622), (9342, 68448), (9936, 64356), (10044, 63664), (10726, 59616), (11072, 57753), (11408, 56052), (11937, 53568), (12456, 51336), (12834, 49824), (13248, 48267), (13392, 47748), (14013, 45632), (14904, 42904), (15916, 40176), (16089, 39744), (16608, 38502), (17112, 37368), (17856, 35811), (18684, 34224), (19251, 33216), (19872, 32178), (20088, 31832), (21452, 29808), (22816, 28026), (23874, 26784), (24912, 25668)]