257443312

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{389}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 603532800

約数和(自身を除く): 346089488

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 311, 389, 532, 622, 778, 1064, 1244, 1556, 2128, 2177, 2488, 2723, 3112, 4354, 4976, 5446, 5909, 6224, 7391, 8708, 10892, 11818, 14782, 17416, 21784, 23636, 29564, 34832, 41363, 43568, 47272, 51737, 59128, 82726, 94544, 103474, 118256, 120979, 165452, 206948, 241958, 330904, 413896, 483916, 661808, 827792, 846853, 967832, 1693706, 1935664, 2298601, 3387412, 4597202, 6774824, 9194404, 13549648, 16090207, 18388808, 32180414, 36777616, 64360828, 128721656, 257443312]

約数ペア:

[(1, 257443312), (2, 128721656), (4, 64360828), (7, 36777616), (8, 32180414), (14, 18388808), (16, 16090207), (19, 13549648), (28, 9194404), (38, 6774824), (56, 4597202), (76, 3387412), (112, 2298601), (133, 1935664), (152, 1693706), (266, 967832), (304, 846853), (311, 827792), (389, 661808), (532, 483916), (622, 413896), (778, 330904), (1064, 241958), (1244, 206948), (1556, 165452), (2128, 120979), (2177, 118256), (2488, 103474), (2723, 94544), (3112, 82726), (4354, 59128), (4976, 51737), (5446, 47272), (5909, 43568), (6224, 41363), (7391, 34832), (8708, 29564), (10892, 23636), (11818, 21784), (14782, 17416)]