256822144

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1695

約数の個数: 64

約数和(自身を含む): 541926000

約数和(自身を除く): 285103856

約数列:

[1, 2, 4, 8, 16, 29, 32, 43, 58, 64, 86, 116, 128, 172, 232, 344, 464, 688, 928, 1247, 1376, 1609, 1856, 2494, 2752, 3218, 3712, 4988, 5504, 6436, 9976, 12872, 19952, 25744, 39904, 46661, 51488, 69187, 79808, 93322, 102976, 138374, 159616, 186644, 205952, 276748, 373288, 553496, 746576, 1106992, 1493152, 2006423, 2213984, 2986304, 4012846, 4427968, 5972608, 8025692, 8855936, 16051384, 32102768, 64205536, 128411072, 256822144]

約数ペア:

[(1, 256822144), (2, 128411072), (4, 64205536), (8, 32102768), (16, 16051384), (29, 8855936), (32, 8025692), (43, 5972608), (58, 4427968), (64, 4012846), (86, 2986304), (116, 2213984), (128, 2006423), (172, 1493152), (232, 1106992), (344, 746576), (464, 553496), (688, 373288), (928, 276748), (1247, 205952), (1376, 186644), (1609, 159616), (1856, 138374), (2494, 102976), (2752, 93322), (3218, 79808), (3712, 69187), (4988, 51488), (5504, 46661), (6436, 39904), (9976, 25744), (12872, 19952)]