256720912

素因数分解:

$2^4\times 7^1\times {\mathrm{241}}^1\times {\mathrm{9511}}^1$

素因数の和:9767

約数の個数: 40

約数和(自身を含む): 570872192

約数和(自身を除く): 314151280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 241, 482, 964, 1687, 1928, 3374, 3856, 6748, 9511, 13496, 19022, 26992, 38044, 66577, 76088, 133154, 152176, 266308, 532616, 1065232, 2292151, 4584302, 9168604, 16045057, 18337208, 32090114, 36674416, 64180228, 128360456, 256720912]

約数ペア:

[(1, 256720912), (2, 128360456), (4, 64180228), (7, 36674416), (8, 32090114), (14, 18337208), (16, 16045057), (28, 9168604), (56, 4584302), (112, 2292151), (241, 1065232), (482, 532616), (964, 266308), (1687, 152176), (1928, 133154), (3374, 76088), (3856, 66577), (6748, 38044), (9511, 26992), (13496, 19022)]