81286016

素因数分解:

$2^7\times 7^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 186317280

約数和(自身を除く): 105031264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 257, 353, 448, 514, 706, 896, 1028, 1412, 1799, 2056, 2471, 2824, 3598, 4112, 4942, 5648, 7196, 8224, 9884, 11296, 14392, 16448, 19768, 22592, 28784, 32896, 39536, 45184, 57568, 79072, 90721, 115136, 158144, 181442, 230272, 316288, 362884, 635047, 725768, 1270094, 1451536, 2540188, 2903072, 5080376, 5806144, 10160752, 11612288, 20321504, 40643008, 81286016]

約数ペア:

[(1, 81286016), (2, 40643008), (4, 20321504), (7, 11612288), (8, 10160752), (14, 5806144), (16, 5080376), (28, 2903072), (32, 2540188), (56, 1451536), (64, 1270094), (112, 725768), (128, 635047), (224, 362884), (257, 316288), (353, 230272), (448, 181442), (514, 158144), (706, 115136), (896, 90721), (1028, 79072), (1412, 57568), (1799, 45184), (2056, 39536), (2471, 32896), (2824, 28784), (3598, 22592), (4112, 19768), (4942, 16448), (5648, 14392), (7196, 11296), (8224, 9884)]