1256.00000000

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{3491}}^1$

素因数の和:3679

約数の個数: 40

約数和(自身を含む): 150686784

約数和(自身を除く): 83045168

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 1211, 1384, 2422, 2768, 3491, 4844, 6982, 9688, 13964, 19376, 24437, 27928, 48874, 55856, 97748, 195496, 390992, 603943, 1207886, 2415772, 4227601, 4831544, 8455202, 9663088, 16910404, 33820808, 67641616]

約数ペア:

[(1, 67641616), (2, 33820808), (4, 16910404), (7, 9663088), (8, 8455202), (14, 4831544), (16, 4227601), (28, 2415772), (56, 1207886), (112, 603943), (173, 390992), (346, 195496), (692, 97748), (1211, 55856), (1384, 48874), (2422, 27928), (2768, 24437), (3491, 19376), (4844, 13964), (6982, 9688)]