256700752

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1499}}^1$

素因数の和:1664

約数の個数: 80

約数和(自身を含む): 624960000

約数和(自身を除く): 368259248

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 139, 154, 176, 278, 308, 556, 616, 973, 1112, 1232, 1499, 1529, 1946, 2224, 2998, 3058, 3892, 5996, 6116, 7784, 10493, 10703, 11992, 12232, 15568, 16489, 20986, 21406, 23984, 24464, 32978, 41972, 42812, 65956, 83944, 85624, 115423, 131912, 167888, 171248, 208361, 230846, 263824, 416722, 461692, 833444, 923384, 1458527, 1666888, 1846768, 2291971, 2917054, 3333776, 4583942, 5834108, 9167884, 11668216, 16043797, 18335768, 23336432, 32087594, 36671536, 64175188, 128350376, 256700752]

約数ペア:

[(1, 256700752), (2, 128350376), (4, 64175188), (7, 36671536), (8, 32087594), (11, 23336432), (14, 18335768), (16, 16043797), (22, 11668216), (28, 9167884), (44, 5834108), (56, 4583942), (77, 3333776), (88, 2917054), (112, 2291971), (139, 1846768), (154, 1666888), (176, 1458527), (278, 923384), (308, 833444), (556, 461692), (616, 416722), (973, 263824), (1112, 230846), (1232, 208361), (1499, 171248), (1529, 167888), (1946, 131912), (2224, 115423), (2998, 85624), (3058, 83944), (3892, 65956), (5996, 42812), (6116, 41972), (7784, 32978), (10493, 24464), (10703, 23984), (11992, 21406), (12232, 20986), (15568, 16489)]