256949568

素因数分解:

$2^6\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:253

約数の個数: 168

約数和(自身を含む): 766486656

約数和(自身を除く): 509537088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 64, 71, 72, 96, 103, 122, 142, 144, 183, 192, 206, 213, 244, 284, 288, 309, 366, 412, 426, 488, 549, 568, 576, 618, 639, 732, 824, 852, 927, 976, 1098, 1136, 1236, 1278, 1464, 1648, 1704, 1854, 1952, 2196, 2272, 2472, 2556, 2928, 3296, 3408, 3708, 3904, 4331, 4392, 4544, 4944, 5112, 5856, 6283, 6592, 6816, 7313, 7416, 8662, 8784, 9888, 10224, 11712, 12566, 12993, 13632, 14626, 14832, 17324, 17568, 18849, 19776, 20448, 21939, 25132, 25986, 29252, 29664, 34648, 35136, 37698, 38979, 40896, 43878, 50264, 51972, 56547, 58504, 59328, 65817, 69296, 75396, 77958, 87756, 100528, 103944, 113094, 117008, 131634, 138592, 150792, 155916, 175512, 201056, 207888, 226188, 234016, 263268, 277184, 301584, 311832, 351024, 402112, 415776, 446093, 452376, 468032, 526536, 603168, 623664, 702048, 831552, 892186, 904752, 1053072, 1206336, 1247328, 1338279, 1404096, 1784372, 1809504, 2106144, 2494656, 2676558, 3568744, 3619008, 4014837, 4212288, 5353116, 7137488, 8029674, 10706232, 14274976, 16059348, 21412464, 28549952, 32118696, 42824928, 64237392, 85649856, 128474784, 256949568]

約数ペア:

[(1, 256949568), (2, 128474784), (3, 85649856), (4, 64237392), (6, 42824928), (8, 32118696), (9, 28549952), (12, 21412464), (16, 16059348), (18, 14274976), (24, 10706232), (32, 8029674), (36, 7137488), (48, 5353116), (61, 4212288), (64, 4014837), (71, 3619008), (72, 3568744), (96, 2676558), (103, 2494656), (122, 2106144), (142, 1809504), (144, 1784372), (183, 1404096), (192, 1338279), (206, 1247328), (213, 1206336), (244, 1053072), (284, 904752), (288, 892186), (309, 831552), (366, 702048), (412, 623664), (426, 603168), (488, 526536), (549, 468032), (568, 452376), (576, 446093), (618, 415776), (639, 402112), (732, 351024), (824, 311832), (852, 301584), (927, 277184), (976, 263268), (1098, 234016), (1136, 226188), (1236, 207888), (1278, 201056), (1464, 175512), (1648, 155916), (1704, 150792), (1854, 138592), (1952, 131634), (2196, 117008), (2272, 113094), (2472, 103944), (2556, 100528), (2928, 87756), (3296, 77958), (3408, 75396), (3708, 69296), (3904, 65817), (4331, 59328), (4392, 58504), (4544, 56547), (4944, 51972), (5112, 50264), (5856, 43878), (6283, 40896), (6592, 38979), (6816, 37698), (7313, 35136), (7416, 34648), (8662, 29664), (8784, 29252), (9888, 25986), (10224, 25132), (11712, 21939), (12566, 20448), (12993, 19776), (13632, 18849), (14626, 17568), (14832, 17324)]