20687616

素因数分解:

$2^8\times 3^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 63527520

約数和(自身を除く): 42839904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 41, 48, 54, 64, 72, 73, 82, 96, 108, 123, 128, 144, 146, 164, 192, 216, 219, 246, 256, 288, 292, 328, 369, 384, 432, 438, 492, 576, 584, 656, 657, 738, 768, 864, 876, 984, 1107, 1152, 1168, 1312, 1314, 1476, 1728, 1752, 1968, 1971, 2214, 2304, 2336, 2624, 2628, 2952, 2993, 3456, 3504, 3936, 3942, 4428, 4672, 5248, 5256, 5904, 5986, 6912, 7008, 7872, 7884, 8856, 8979, 9344, 10496, 10512, 11808, 11972, 14016, 15744, 15768, 17712, 17958, 18688, 21024, 23616, 23944, 26937, 28032, 31488, 31536, 35424, 35916, 42048, 47232, 47888, 53874, 56064, 63072, 70848, 71832, 80811, 84096, 94464, 95776, 107748, 126144, 141696, 143664, 161622, 168192, 191552, 215496, 252288, 283392, 287328, 323244, 383104, 430992, 504576, 574656, 646488, 766208, 861984, 1149312, 1292976, 1723968, 2298624, 2585952, 3447936, 5171904, 6895872, 10343808, 20687616]

約数ペア:

[(1, 20687616), (2, 10343808), (3, 6895872), (4, 5171904), (6, 3447936), (8, 2585952), (9, 2298624), (12, 1723968), (16, 1292976), (18, 1149312), (24, 861984), (27, 766208), (32, 646488), (36, 574656), (41, 504576), (48, 430992), (54, 383104), (64, 323244), (72, 287328), (73, 283392), (82, 252288), (96, 215496), (108, 191552), (123, 168192), (128, 161622), (144, 143664), (146, 141696), (164, 126144), (192, 107748), (216, 95776), (219, 94464), (246, 84096), (256, 80811), (288, 71832), (292, 70848), (328, 63072), (369, 56064), (384, 53874), (432, 47888), (438, 47232), (492, 42048), (576, 35916), (584, 35424), (656, 31536), (657, 31488), (738, 28032), (768, 26937), (864, 23944), (876, 23616), (984, 21024), (1107, 18688), (1152, 17958), (1168, 17712), (1312, 15768), (1314, 15744), (1476, 14016), (1728, 11972), (1752, 11808), (1968, 10512), (1971, 10496), (2214, 9344), (2304, 8979), (2336, 8856), (2624, 7884), (2628, 7872), (2952, 7008), (2993, 6912), (3456, 5986), (3504, 5904), (3936, 5256), (3942, 5248), (4428, 4672)]