78876784

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 181863360

約数和(自身を除く): 102986576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 89, 112, 164, 178, 193, 287, 328, 356, 386, 574, 623, 656, 712, 772, 1148, 1246, 1351, 1424, 1544, 2296, 2492, 2702, 3088, 3649, 4592, 4984, 5404, 7298, 7913, 9968, 10808, 14596, 15826, 17177, 21616, 25543, 29192, 31652, 34354, 51086, 55391, 58384, 63304, 68708, 102172, 110782, 120239, 126608, 137416, 204344, 221564, 240478, 274832, 408688, 443128, 480956, 704257, 886256, 961912, 1408514, 1923824, 2817028, 4929799, 5634056, 9859598, 11268112, 19719196, 39438392, 78876784]

約数ペア:

[(1, 78876784), (2, 39438392), (4, 19719196), (7, 11268112), (8, 9859598), (14, 5634056), (16, 4929799), (28, 2817028), (41, 1923824), (56, 1408514), (82, 961912), (89, 886256), (112, 704257), (164, 480956), (178, 443128), (193, 408688), (287, 274832), (328, 240478), (356, 221564), (386, 204344), (574, 137416), (623, 126608), (656, 120239), (712, 110782), (772, 102172), (1148, 68708), (1246, 63304), (1351, 58384), (1424, 55391), (1544, 51086), (2296, 34354), (2492, 31652), (2702, 29192), (3088, 25543), (3649, 21616), (4592, 17177), (4984, 15826), (5404, 14596), (7298, 10808), (7913, 9968)]