256438896640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{503}}^1\times {\mathrm{49787}}^1$

素因数の和:50317

約数の個数: 96

約数和(自身を含む): 616538744640

約数和(自身を除く): 360099848000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 503, 512, 640, 1006, 1024, 1280, 2012, 2048, 2515, 2560, 4024, 5030, 5120, 8048, 10060, 10240, 16096, 20120, 32192, 40240, 49787, 64384, 80480, 99574, 128768, 160960, 199148, 248935, 257536, 321920, 398296, 497870, 515072, 643840, 796592, 995740, 1030144, 1287680, 1593184, 1991480, 2575360, 3186368, 3982960, 5150720, 6372736, 7965920, 12745472, 15931840, 25042861, 25490944, 31863680, 50085722, 50981888, 63727360, 100171444, 101963776, 125214305, 127454720, 200342888, 250428610, 254909440, 400685776, 500857220, 509818880, 801371552, 1001714440, 1602743104, 2003428880, 3205486208, 4006857760, 6410972416, 8013715520, 12821944832, 16027431040, 25643889664, 32054862080, 51287779328, 64109724160, 128219448320, 256438896640]

約数ペア:

[(1, 256438896640), (2, 128219448320), (4, 64109724160), (5, 51287779328), (8, 32054862080), (10, 25643889664), (16, 16027431040), (20, 12821944832), (32, 8013715520), (40, 6410972416), (64, 4006857760), (80, 3205486208), (128, 2003428880), (160, 1602743104), (256, 1001714440), (320, 801371552), (503, 509818880), (512, 500857220), (640, 400685776), (1006, 254909440), (1024, 250428610), (1280, 200342888), (2012, 127454720), (2048, 125214305), (2515, 101963776), (2560, 100171444), (4024, 63727360), (5030, 50981888), (5120, 50085722), (8048, 31863680), (10060, 25490944), (10240, 25042861), (16096, 15931840), (20120, 12745472), (32192, 7965920), (40240, 6372736), (49787, 5150720), (64384, 3982960), (80480, 3186368), (99574, 2575360), (128768, 1991480), (160960, 1593184), (199148, 1287680), (248935, 1030144), (257536, 995740), (321920, 796592), (398296, 643840), (497870, 515072)]