257655384

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 256

約数和(自身を含む): 884736000

約数和(自身を除く): 627080616

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 27, 28, 31, 36, 42, 46, 54, 56, 62, 63, 69, 72, 84, 92, 93, 108, 124, 126, 138, 161, 168, 184, 186, 189, 207, 216, 217, 239, 248, 252, 276, 279, 322, 372, 378, 414, 434, 478, 483, 504, 552, 558, 621, 644, 651, 713, 717, 744, 756, 828, 837, 868, 956, 966, 1116, 1242, 1288, 1302, 1426, 1434, 1449, 1512, 1656, 1673, 1674, 1736, 1912, 1932, 1953, 2139, 2151, 2232, 2484, 2604, 2852, 2868, 2898, 3346, 3348, 3864, 3906, 4278, 4302, 4347, 4968, 4991, 5019, 5208, 5497, 5704, 5736, 5796, 5859, 6417, 6453, 6692, 6696, 7409, 7812, 8556, 8604, 8694, 9982, 10038, 10994, 11592, 11718, 12834, 12906, 13384, 14818, 14973, 15057, 15624, 16491, 17112, 17208, 17388, 19251, 19964, 20076, 21988, 22227, 23436, 25668, 25812, 29636, 29946, 30114, 32982, 34776, 38479, 38502, 39928, 40152, 43976, 44454, 44919, 45171, 46872, 49473, 51336, 51624, 51863, 59272, 59892, 60228, 65964, 66681, 76958, 77004, 88908, 89838, 90342, 98946, 103726, 115437, 119784, 120456, 131928, 133362, 134757, 148419, 153916, 154008, 155589, 170407, 177816, 179676, 180684, 197892, 200043, 207452, 230874, 266724, 269514, 296838, 307832, 311178, 340814, 346311, 359352, 361368, 395784, 400086, 414904, 461748, 466767, 511221, 533448, 539028, 593676, 622356, 681628, 692622, 800172, 923496, 933534, 1022442, 1038933, 1078056, 1187352, 1192849, 1244712, 1363256, 1385244, 1400301, 1533663, 1600344, 1867068, 2044884, 2077866, 2385698, 2770488, 2800602, 3067326, 3578547, 3734136, 4089768, 4155732, 4600989, 4771396, 5601204, 6134652, 7157094, 8311464, 9201978, 9542792, 10735641, 11202408, 12269304, 14314188, 18403956, 21471282, 28628376, 32206923, 36807912, 42942564, 64413846, 85885128, 128827692, 257655384]

約数ペア:

[(1, 257655384), (2, 128827692), (3, 85885128), (4, 64413846), (6, 42942564), (7, 36807912), (8, 32206923), (9, 28628376), (12, 21471282), (14, 18403956), (18, 14314188), (21, 12269304), (23, 11202408), (24, 10735641), (27, 9542792), (28, 9201978), (31, 8311464), (36, 7157094), (42, 6134652), (46, 5601204), (54, 4771396), (56, 4600989), (62, 4155732), (63, 4089768), (69, 3734136), (72, 3578547), (84, 3067326), (92, 2800602), (93, 2770488), (108, 2385698), (124, 2077866), (126, 2044884), (138, 1867068), (161, 1600344), (168, 1533663), (184, 1400301), (186, 1385244), (189, 1363256), (207, 1244712), (216, 1192849), (217, 1187352), (239, 1078056), (248, 1038933), (252, 1022442), (276, 933534), (279, 923496), (322, 800172), (372, 692622), (378, 681628), (414, 622356), (434, 593676), (478, 539028), (483, 533448), (504, 511221), (552, 466767), (558, 461748), (621, 414904), (644, 400086), (651, 395784), (713, 361368), (717, 359352), (744, 346311), (756, 340814), (828, 311178), (837, 307832), (868, 296838), (956, 269514), (966, 266724), (1116, 230874), (1242, 207452), (1288, 200043), (1302, 197892), (1426, 180684), (1434, 179676), (1449, 177816), (1512, 170407), (1656, 155589), (1673, 154008), (1674, 153916), (1736, 148419), (1912, 134757), (1932, 133362), (1953, 131928), (2139, 120456), (2151, 119784), (2232, 115437), (2484, 103726), (2604, 98946), (2852, 90342), (2868, 89838), (2898, 88908), (3346, 77004), (3348, 76958), (3864, 66681), (3906, 65964), (4278, 60228), (4302, 59892), (4347, 59272), (4968, 51863), (4991, 51624), (5019, 51336), (5208, 49473), (5497, 46872), (5704, 45171), (5736, 44919), (5796, 44454), (5859, 43976), (6417, 40152), (6453, 39928), (6692, 38502), (6696, 38479), (7409, 34776), (7812, 32982), (8556, 30114), (8604, 29946), (8694, 29636), (9982, 25812), (10038, 25668), (10994, 23436), (11592, 22227), (11718, 21988), (12834, 20076), (12906, 19964), (13384, 19251), (14818, 17388), (14973, 17208), (15057, 17112), (15624, 16491)]