257503488

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:221

約数の個数: 216

約数和(自身を含む): 802507104

約数和(自身を除く): 545003616

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 32, 33, 34, 44, 48, 51, 64, 66, 68, 88, 96, 102, 121, 128, 132, 136, 163, 176, 187, 192, 204, 242, 256, 264, 272, 326, 352, 363, 374, 384, 408, 484, 489, 528, 544, 561, 652, 704, 726, 748, 768, 816, 968, 978, 1056, 1088, 1122, 1304, 1408, 1452, 1496, 1632, 1793, 1936, 1956, 2057, 2112, 2176, 2244, 2608, 2771, 2816, 2904, 2992, 3264, 3586, 3872, 3912, 4114, 4224, 4352, 4488, 5216, 5379, 5542, 5808, 5984, 6171, 6528, 7172, 7744, 7824, 8228, 8313, 8448, 8976, 10432, 10758, 11084, 11616, 11968, 12342, 13056, 14344, 15488, 15648, 16456, 16626, 17952, 19723, 20864, 21516, 22168, 23232, 23936, 24684, 28688, 30481, 30976, 31296, 32912, 33252, 35904, 39446, 41728, 43032, 44336, 46464, 47872, 49368, 57376, 59169, 60962, 62592, 65824, 66504, 71808, 78892, 86064, 88672, 91443, 92928, 98736, 114752, 118338, 121924, 125184, 131648, 133008, 143616, 157784, 172128, 177344, 182886, 197472, 229504, 236676, 243848, 263296, 266016, 315568, 335291, 344256, 354688, 365772, 394944, 459008, 473352, 487696, 526592, 532032, 631136, 670582, 688512, 709376, 731544, 789888, 946704, 975392, 1005873, 1064064, 1262272, 1341164, 1377024, 1463088, 1579776, 1893408, 1950784, 2011746, 2128128, 2524544, 2682328, 2926176, 3786816, 3901568, 4023492, 5049088, 5364656, 5852352, 7573632, 7803136, 8046984, 10729312, 11704704, 15147264, 16093968, 21458624, 23409408, 32187936, 42917248, 64375872, 85834496, 128751744, 257503488]

約数ペア:

[(1, 257503488), (2, 128751744), (3, 85834496), (4, 64375872), (6, 42917248), (8, 32187936), (11, 23409408), (12, 21458624), (16, 16093968), (17, 15147264), (22, 11704704), (24, 10729312), (32, 8046984), (33, 7803136), (34, 7573632), (44, 5852352), (48, 5364656), (51, 5049088), (64, 4023492), (66, 3901568), (68, 3786816), (88, 2926176), (96, 2682328), (102, 2524544), (121, 2128128), (128, 2011746), (132, 1950784), (136, 1893408), (163, 1579776), (176, 1463088), (187, 1377024), (192, 1341164), (204, 1262272), (242, 1064064), (256, 1005873), (264, 975392), (272, 946704), (326, 789888), (352, 731544), (363, 709376), (374, 688512), (384, 670582), (408, 631136), (484, 532032), (489, 526592), (528, 487696), (544, 473352), (561, 459008), (652, 394944), (704, 365772), (726, 354688), (748, 344256), (768, 335291), (816, 315568), (968, 266016), (978, 263296), (1056, 243848), (1088, 236676), (1122, 229504), (1304, 197472), (1408, 182886), (1452, 177344), (1496, 172128), (1632, 157784), (1793, 143616), (1936, 133008), (1956, 131648), (2057, 125184), (2112, 121924), (2176, 118338), (2244, 114752), (2608, 98736), (2771, 92928), (2816, 91443), (2904, 88672), (2992, 86064), (3264, 78892), (3586, 71808), (3872, 66504), (3912, 65824), (4114, 62592), (4224, 60962), (4352, 59169), (4488, 57376), (5216, 49368), (5379, 47872), (5542, 46464), (5808, 44336), (5984, 43032), (6171, 41728), (6528, 39446), (7172, 35904), (7744, 33252), (7824, 32912), (8228, 31296), (8313, 30976), (8448, 30481), (8976, 28688), (10432, 24684), (10758, 23936), (11084, 23232), (11616, 22168), (11968, 21516), (12342, 20864), (13056, 19723), (14344, 17952), (15488, 16626), (15648, 16456)]