256451328

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{15901}}^1$

素因数の和:15930

約数の個数: 108

約数和(自身を含む): 845095888

約数和(自身を除く): 588644560

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, 576, 672, 768, 896, 1008, 1152, 1344, 1792, 2016, 2304, 2688, 4032, 5376, 8064, 15901, 16128, 31802, 47703, 63604, 95406, 111307, 127208, 143109, 190812, 222614, 254416, 286218, 333921, 381624, 445228, 508832, 572436, 667842, 763248, 890456, 1001763, 1017664, 1144872, 1335684, 1526496, 1780912, 2003526, 2035328, 2289744, 2671368, 3052992, 3561824, 4007052, 4070656, 4579488, 5342736, 6105984, 7123648, 8014104, 9158976, 10685472, 12211968, 14247296, 16028208, 18317952, 21370944, 28494592, 32056416, 36635904, 42741888, 64112832, 85483776, 128225664, 256451328]

約数ペア:

[(1, 256451328), (2, 128225664), (3, 85483776), (4, 64112832), (6, 42741888), (7, 36635904), (8, 32056416), (9, 28494592), (12, 21370944), (14, 18317952), (16, 16028208), (18, 14247296), (21, 12211968), (24, 10685472), (28, 9158976), (32, 8014104), (36, 7123648), (42, 6105984), (48, 5342736), (56, 4579488), (63, 4070656), (64, 4007052), (72, 3561824), (84, 3052992), (96, 2671368), (112, 2289744), (126, 2035328), (128, 2003526), (144, 1780912), (168, 1526496), (192, 1335684), (224, 1144872), (252, 1017664), (256, 1001763), (288, 890456), (336, 763248), (384, 667842), (448, 572436), (504, 508832), (576, 445228), (672, 381624), (768, 333921), (896, 286218), (1008, 254416), (1152, 222614), (1344, 190812), (1792, 143109), (2016, 127208), (2304, 111307), (2688, 95406), (4032, 63604), (5376, 47703), (8064, 31802), (15901, 16128)]