257273856

素因数分解:

$2^{12}\times 3^2\times 7^1\times {\mathrm{997}}^1$

素因数の和:1034

約数の個数: 156

約数和(自身を含む): 850160272

約数和(自身を除く): 592886416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 256, 288, 336, 384, 448, 504, 512, 576, 672, 768, 896, 997, 1008, 1024, 1152, 1344, 1536, 1792, 1994, 2016, 2048, 2304, 2688, 2991, 3072, 3584, 3988, 4032, 4096, 4608, 5376, 5982, 6144, 6979, 7168, 7976, 8064, 8973, 9216, 10752, 11964, 12288, 13958, 14336, 15952, 16128, 17946, 18432, 20937, 21504, 23928, 27916, 28672, 31904, 32256, 35892, 36864, 41874, 43008, 47856, 55832, 62811, 63808, 64512, 71784, 83748, 86016, 95712, 111664, 125622, 127616, 129024, 143568, 167496, 191424, 223328, 251244, 255232, 258048, 287136, 334992, 382848, 446656, 502488, 510464, 574272, 669984, 765696, 893312, 1004976, 1020928, 1148544, 1339968, 1531392, 1786624, 2009952, 2041856, 2297088, 2679936, 3062784, 3573248, 4019904, 4083712, 4594176, 5359872, 6125568, 7146496, 8039808, 9188352, 10719744, 12251136, 14292992, 16079616, 18376704, 21439488, 28585984, 32159232, 36753408, 42878976, 64318464, 85757952, 128636928, 257273856]

約数ペア:

[(1, 257273856), (2, 128636928), (3, 85757952), (4, 64318464), (6, 42878976), (7, 36753408), (8, 32159232), (9, 28585984), (12, 21439488), (14, 18376704), (16, 16079616), (18, 14292992), (21, 12251136), (24, 10719744), (28, 9188352), (32, 8039808), (36, 7146496), (42, 6125568), (48, 5359872), (56, 4594176), (63, 4083712), (64, 4019904), (72, 3573248), (84, 3062784), (96, 2679936), (112, 2297088), (126, 2041856), (128, 2009952), (144, 1786624), (168, 1531392), (192, 1339968), (224, 1148544), (252, 1020928), (256, 1004976), (288, 893312), (336, 765696), (384, 669984), (448, 574272), (504, 510464), (512, 502488), (576, 446656), (672, 382848), (768, 334992), (896, 287136), (997, 258048), (1008, 255232), (1024, 251244), (1152, 223328), (1344, 191424), (1536, 167496), (1792, 143568), (1994, 129024), (2016, 127616), (2048, 125622), (2304, 111664), (2688, 95712), (2991, 86016), (3072, 83748), (3584, 71784), (3988, 64512), (4032, 63808), (4096, 62811), (4608, 55832), (5376, 47856), (5982, 43008), (6144, 41874), (6979, 36864), (7168, 35892), (7976, 32256), (8064, 31904), (8973, 28672), (9216, 27916), (10752, 23928), (11964, 21504), (12288, 20937), (13958, 18432), (14336, 17946), (15952, 16128)]