128721656

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{389}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 292032000

約数和(自身を除く): 163310344

約数列:

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

約数ペア:

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