256743360

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:635

約数の個数: 168

約数和(自身を含む): 889162560

約数和(自身を除く): 632419200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 239, 240, 288, 320, 360, 373, 478, 480, 576, 717, 720, 746, 956, 960, 1119, 1195, 1434, 1440, 1492, 1865, 1912, 2151, 2238, 2390, 2868, 2880, 2984, 3357, 3585, 3730, 3824, 4302, 4476, 4780, 5595, 5736, 5968, 6714, 7170, 7460, 7648, 8604, 8952, 9560, 10755, 11190, 11472, 11936, 13428, 14340, 14920, 15296, 16785, 17208, 17904, 19120, 21510, 22380, 22944, 23872, 26856, 28680, 29840, 33570, 34416, 35808, 38240, 43020, 44760, 45888, 53712, 57360, 59680, 67140, 68832, 71616, 76480, 86040, 89147, 89520, 107424, 114720, 119360, 134280, 137664, 172080, 178294, 179040, 214848, 229440, 267441, 268560, 344160, 356588, 358080, 445735, 534882, 537120, 688320, 713176, 802323, 891470, 1069764, 1074240, 1337205, 1426352, 1604646, 1782940, 2139528, 2674410, 2852704, 3209292, 3565880, 4011615, 4279056, 5348820, 5705408, 6418584, 7131760, 8023230, 8558112, 10697640, 12837168, 14263520, 16046460, 17116224, 21395280, 25674336, 28527040, 32092920, 42790560, 51348672, 64185840, 85581120, 128371680, 256743360]

約数ペア:

[(1, 256743360), (2, 128371680), (3, 85581120), (4, 64185840), (5, 51348672), (6, 42790560), (8, 32092920), (9, 28527040), (10, 25674336), (12, 21395280), (15, 17116224), (16, 16046460), (18, 14263520), (20, 12837168), (24, 10697640), (30, 8558112), (32, 8023230), (36, 7131760), (40, 6418584), (45, 5705408), (48, 5348820), (60, 4279056), (64, 4011615), (72, 3565880), (80, 3209292), (90, 2852704), (96, 2674410), (120, 2139528), (144, 1782940), (160, 1604646), (180, 1426352), (192, 1337205), (239, 1074240), (240, 1069764), (288, 891470), (320, 802323), (360, 713176), (373, 688320), (478, 537120), (480, 534882), (576, 445735), (717, 358080), (720, 356588), (746, 344160), (956, 268560), (960, 267441), (1119, 229440), (1195, 214848), (1434, 179040), (1440, 178294), (1492, 172080), (1865, 137664), (1912, 134280), (2151, 119360), (2238, 114720), (2390, 107424), (2868, 89520), (2880, 89147), (2984, 86040), (3357, 76480), (3585, 71616), (3730, 68832), (3824, 67140), (4302, 59680), (4476, 57360), (4780, 53712), (5595, 45888), (5736, 44760), (5968, 43020), (6714, 38240), (7170, 35808), (7460, 34416), (7648, 33570), (8604, 29840), (8952, 28680), (9560, 26856), (10755, 23872), (11190, 22944), (11472, 22380), (11936, 21510), (13428, 19120), (14340, 17904), (14920, 17208), (15296, 16785)]