256559616

素因数分解:

$2^9\times 3^3\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:371

約数の個数: 160

約数和(自身を含む): 773551680

約数和(自身を除く): 516992064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 67, 72, 96, 108, 128, 134, 144, 192, 201, 216, 256, 268, 277, 288, 384, 402, 432, 512, 536, 554, 576, 603, 768, 804, 831, 864, 1072, 1108, 1152, 1206, 1536, 1608, 1662, 1728, 1809, 2144, 2216, 2304, 2412, 2493, 3216, 3324, 3456, 3618, 4288, 4432, 4608, 4824, 4986, 6432, 6648, 6912, 7236, 7479, 8576, 8864, 9648, 9972, 12864, 13296, 13824, 14472, 14958, 17152, 17728, 18559, 19296, 19944, 25728, 26592, 28944, 29916, 34304, 35456, 37118, 38592, 39888, 51456, 53184, 55677, 57888, 59832, 70912, 74236, 77184, 79776, 102912, 106368, 111354, 115776, 119664, 141824, 148472, 154368, 159552, 167031, 212736, 222708, 231552, 239328, 296944, 308736, 319104, 334062, 425472, 445416, 463104, 478656, 501093, 593888, 638208, 668124, 890832, 926208, 957312, 1002186, 1187776, 1276416, 1336248, 1781664, 1914624, 2004372, 2375552, 2672496, 3563328, 3829248, 4008744, 4751104, 5344992, 7126656, 8017488, 9502208, 10689984, 14253312, 16034976, 21379968, 28506624, 32069952, 42759936, 64139904, 85519872, 128279808, 256559616]

約数ペア:

[(1, 256559616), (2, 128279808), (3, 85519872), (4, 64139904), (6, 42759936), (8, 32069952), (9, 28506624), (12, 21379968), (16, 16034976), (18, 14253312), (24, 10689984), (27, 9502208), (32, 8017488), (36, 7126656), (48, 5344992), (54, 4751104), (64, 4008744), (67, 3829248), (72, 3563328), (96, 2672496), (108, 2375552), (128, 2004372), (134, 1914624), (144, 1781664), (192, 1336248), (201, 1276416), (216, 1187776), (256, 1002186), (268, 957312), (277, 926208), (288, 890832), (384, 668124), (402, 638208), (432, 593888), (512, 501093), (536, 478656), (554, 463104), (576, 445416), (603, 425472), (768, 334062), (804, 319104), (831, 308736), (864, 296944), (1072, 239328), (1108, 231552), (1152, 222708), (1206, 212736), (1536, 167031), (1608, 159552), (1662, 154368), (1728, 148472), (1809, 141824), (2144, 119664), (2216, 115776), (2304, 111354), (2412, 106368), (2493, 102912), (3216, 79776), (3324, 77184), (3456, 74236), (3618, 70912), (4288, 59832), (4432, 57888), (4608, 55677), (4824, 53184), (4986, 51456), (6432, 39888), (6648, 38592), (6912, 37118), (7236, 35456), (7479, 34304), (8576, 29916), (8864, 28944), (9648, 26592), (9972, 25728), (12864, 19944), (13296, 19296), (13824, 18559), (14472, 17728), (14958, 17152)]