28705824

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:543

約数の個数: 144

約数和(自身を含む): 96707520

約数和(自身を除く): 68001696

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 56, 58, 63, 72, 84, 87, 96, 112, 116, 126, 144, 168, 174, 203, 224, 232, 252, 261, 288, 336, 348, 406, 464, 491, 504, 522, 609, 672, 696, 812, 928, 982, 1008, 1044, 1218, 1392, 1473, 1624, 1827, 1964, 2016, 2088, 2436, 2784, 2946, 3248, 3437, 3654, 3928, 4176, 4419, 4872, 5892, 6496, 6874, 7308, 7856, 8352, 8838, 9744, 10311, 11784, 13748, 14239, 14616, 15712, 17676, 19488, 20622, 23568, 27496, 28478, 29232, 30933, 35352, 41244, 42717, 47136, 54992, 56956, 58464, 61866, 70704, 82488, 85434, 99673, 109984, 113912, 123732, 128151, 141408, 164976, 170868, 199346, 227824, 247464, 256302, 299019, 329952, 341736, 398692, 455648, 494928, 512604, 598038, 683472, 797384, 897057, 989856, 1025208, 1196076, 1366944, 1594768, 1794114, 2050416, 2392152, 3189536, 3588228, 4100832, 4784304, 7176456, 9568608, 14352912, 28705824]

約数ペア:

[(1, 28705824), (2, 14352912), (3, 9568608), (4, 7176456), (6, 4784304), (7, 4100832), (8, 3588228), (9, 3189536), (12, 2392152), (14, 2050416), (16, 1794114), (18, 1594768), (21, 1366944), (24, 1196076), (28, 1025208), (29, 989856), (32, 897057), (36, 797384), (42, 683472), (48, 598038), (56, 512604), (58, 494928), (63, 455648), (72, 398692), (84, 341736), (87, 329952), (96, 299019), (112, 256302), (116, 247464), (126, 227824), (144, 199346), (168, 170868), (174, 164976), (203, 141408), (224, 128151), (232, 123732), (252, 113912), (261, 109984), (288, 99673), (336, 85434), (348, 82488), (406, 70704), (464, 61866), (491, 58464), (504, 56956), (522, 54992), (609, 47136), (672, 42717), (696, 41244), (812, 35352), (928, 30933), (982, 29232), (1008, 28478), (1044, 27496), (1218, 23568), (1392, 20622), (1473, 19488), (1624, 17676), (1827, 15712), (1964, 14616), (2016, 14239), (2088, 13748), (2436, 11784), (2784, 10311), (2946, 9744), (3248, 8838), (3437, 8352), (3654, 7856), (3928, 7308), (4176, 6874), (4419, 6496), (4872, 5892)]