256778368

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{26053}}^1$

素因数の和:26085

約数の個数: 64

約数和(自身を含む): 637801920

約数和(自身を除く): 381023552

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2464, 4928, 9856, 26053, 52106, 104212, 182371, 208424, 286583, 364742, 416848, 573166, 729484, 833696, 1146332, 1458968, 1667392, 2006081, 2292664, 2917936, 3334784, 4012162, 4585328, 5835872, 8024324, 9170656, 11671744, 16048648, 18341312, 23343488, 32097296, 36682624, 64194592, 128389184, 256778368]

約数ペア:

[(1, 256778368), (2, 128389184), (4, 64194592), (7, 36682624), (8, 32097296), (11, 23343488), (14, 18341312), (16, 16048648), (22, 11671744), (28, 9170656), (32, 8024324), (44, 5835872), (56, 4585328), (64, 4012162), (77, 3334784), (88, 2917936), (112, 2292664), (128, 2006081), (154, 1667392), (176, 1458968), (224, 1146332), (308, 833696), (352, 729484), (448, 573166), (616, 416848), (704, 364742), (896, 286583), (1232, 208424), (1408, 182371), (2464, 104212), (4928, 52106), (9856, 26053)]