257079456

素因数分解:

$2^5\times 3^2\times {\mathrm{43}}^1\times {\mathrm{20759}}^1$

素因数の和:20818

約数の個数: 72

約数和(自身を含む): 748107360

約数和(自身を除く): 491027904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 72, 86, 96, 129, 144, 172, 258, 288, 344, 387, 516, 688, 774, 1032, 1376, 1548, 2064, 3096, 4128, 6192, 12384, 20759, 41518, 62277, 83036, 124554, 166072, 186831, 249108, 332144, 373662, 498216, 664288, 747324, 892637, 996432, 1494648, 1785274, 1992864, 2677911, 2989296, 3570548, 5355822, 5978592, 7141096, 8033733, 10711644, 14282192, 16067466, 21423288, 28564384, 32134932, 42846576, 64269864, 85693152, 128539728, 257079456]

約数ペア:

[(1, 257079456), (2, 128539728), (3, 85693152), (4, 64269864), (6, 42846576), (8, 32134932), (9, 28564384), (12, 21423288), (16, 16067466), (18, 14282192), (24, 10711644), (32, 8033733), (36, 7141096), (43, 5978592), (48, 5355822), (72, 3570548), (86, 2989296), (96, 2677911), (129, 1992864), (144, 1785274), (172, 1494648), (258, 996432), (288, 892637), (344, 747324), (387, 664288), (516, 498216), (688, 373662), (774, 332144), (1032, 249108), (1376, 186831), (1548, 166072), (2064, 124554), (3096, 83036), (4128, 62277), (6192, 41518), (12384, 20759)]