256893779968

素因数分解:

$2^{20}\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1207

約数の個数: 168

約数和(自身を含む): 606663841280

約数和(自身を除く): 349770061312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1024, 1129, 1736, 1792, 1984, 2048, 2258, 3472, 3584, 3968, 4096, 4516, 6944, 7168, 7903, 7936, 8192, 9032, 13888, 14336, 15806, 15872, 16384, 18064, 27776, 28672, 31612, 31744, 32768, 34999, 36128, 55552, 57344, 63224, 63488, 65536, 69998, 72256, 111104, 114688, 126448, 126976, 131072, 139996, 144512, 222208, 229376, 244993, 252896, 253952, 262144, 279992, 289024, 444416, 458752, 489986, 505792, 507904, 524288, 559984, 578048, 888832, 917504, 979972, 1011584, 1015808, 1048576, 1119968, 1156096, 1777664, 1835008, 1959944, 2023168, 2031616, 2239936, 2312192, 3555328, 3670016, 3919888, 4046336, 4063232, 4479872, 4624384, 7110656, 7340032, 7839776, 8092672, 8126464, 8959744, 9248768, 14221312, 15679552, 16185344, 16252928, 17919488, 18497536, 28442624, 31359104, 32370688, 32505856, 35838976, 36995072, 56885248, 62718208, 64741376, 71677952, 73990144, 113770496, 125436416, 129482752, 143355904, 147980288, 227540992, 250872832, 258965504, 286711808, 295960576, 501745664, 517931008, 573423616, 591921152, 1003491328, 1035862016, 1146847232, 1183842304, 2006982656, 2071724032, 2293694464, 4013965312, 4143448064, 4587388928, 8027930624, 8286896128, 9174777856, 16055861248, 18349555712, 32111722496, 36699111424, 64223444992, 128446889984, 256893779968]

約数ペア:

[(1, 256893779968), (2, 128446889984), (4, 64223444992), (7, 36699111424), (8, 32111722496), (14, 18349555712), (16, 16055861248), (28, 9174777856), (31, 8286896128), (32, 8027930624), (56, 4587388928), (62, 4143448064), (64, 4013965312), (112, 2293694464), (124, 2071724032), (128, 2006982656), (217, 1183842304), (224, 1146847232), (248, 1035862016), (256, 1003491328), (434, 591921152), (448, 573423616), (496, 517931008), (512, 501745664), (868, 295960576), (896, 286711808), (992, 258965504), (1024, 250872832), (1129, 227540992), (1736, 147980288), (1792, 143355904), (1984, 129482752), (2048, 125436416), (2258, 113770496), (3472, 73990144), (3584, 71677952), (3968, 64741376), (4096, 62718208), (4516, 56885248), (6944, 36995072), (7168, 35838976), (7903, 32505856), (7936, 32370688), (8192, 31359104), (9032, 28442624), (13888, 18497536), (14336, 17919488), (15806, 16252928), (15872, 16185344), (16384, 15679552), (18064, 14221312), (27776, 9248768), (28672, 8959744), (31612, 8126464), (31744, 8092672), (32768, 7839776), (34999, 7340032), (36128, 7110656), (55552, 4624384), (57344, 4479872), (63224, 4063232), (63488, 4046336), (65536, 3919888), (69998, 3670016), (72256, 3555328), (111104, 2312192), (114688, 2239936), (126448, 2031616), (126976, 2023168), (131072, 1959944), (139996, 1835008), (144512, 1777664), (222208, 1156096), (229376, 1119968), (244993, 1048576), (252896, 1015808), (253952, 1011584), (262144, 979972), (279992, 917504), (289024, 888832), (444416, 578048), (458752, 559984), (489986, 524288), (505792, 507904)]