257855232

素因数分解:

$2^8\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:510

約数の個数: 144

約数和(自身を含む): 741726720

約数和(自身を除く): 483871488

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 41, 48, 57, 64, 76, 82, 96, 114, 123, 128, 152, 164, 192, 228, 246, 256, 304, 328, 384, 431, 456, 492, 608, 656, 768, 779, 862, 912, 984, 1216, 1293, 1312, 1558, 1724, 1824, 1968, 2337, 2432, 2586, 2624, 3116, 3448, 3648, 3936, 4674, 4864, 5172, 5248, 6232, 6896, 7296, 7872, 8189, 9348, 10344, 10496, 12464, 13792, 14592, 15744, 16378, 17671, 18696, 20688, 24567, 24928, 27584, 31488, 32756, 35342, 37392, 41376, 49134, 49856, 53013, 55168, 65512, 70684, 74784, 82752, 98268, 99712, 106026, 110336, 131024, 141368, 149568, 165504, 196536, 199424, 212052, 262048, 282736, 299136, 331008, 335749, 393072, 424104, 524096, 565472, 598272, 671498, 786144, 848208, 1007247, 1048192, 1130944, 1342996, 1572288, 1696416, 2014494, 2096384, 2261888, 2685992, 3144576, 3392832, 4028988, 4523776, 5371984, 6289152, 6785664, 8057976, 10743968, 13571328, 16115952, 21487936, 32231904, 42975872, 64463808, 85951744, 128927616, 257855232]

約数ペア:

[(1, 257855232), (2, 128927616), (3, 85951744), (4, 64463808), (6, 42975872), (8, 32231904), (12, 21487936), (16, 16115952), (19, 13571328), (24, 10743968), (32, 8057976), (38, 6785664), (41, 6289152), (48, 5371984), (57, 4523776), (64, 4028988), (76, 3392832), (82, 3144576), (96, 2685992), (114, 2261888), (123, 2096384), (128, 2014494), (152, 1696416), (164, 1572288), (192, 1342996), (228, 1130944), (246, 1048192), (256, 1007247), (304, 848208), (328, 786144), (384, 671498), (431, 598272), (456, 565472), (492, 524096), (608, 424104), (656, 393072), (768, 335749), (779, 331008), (862, 299136), (912, 282736), (984, 262048), (1216, 212052), (1293, 199424), (1312, 196536), (1558, 165504), (1724, 149568), (1824, 141368), (1968, 131024), (2337, 110336), (2432, 106026), (2586, 99712), (2624, 98268), (3116, 82752), (3448, 74784), (3648, 70684), (3936, 65512), (4674, 55168), (4864, 53013), (5172, 49856), (5248, 49134), (6232, 41376), (6896, 37392), (7296, 35342), (7872, 32756), (8189, 31488), (9348, 27584), (10344, 24928), (10496, 24567), (12464, 20688), (13792, 18696), (14592, 17671), (15744, 16378)]