256004

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 526848

約数和(自身を除く): 270844

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 223, 287, 446, 574, 892, 1148, 1561, 3122, 6244, 9143, 18286, 36572, 64001, 128002, 256004]

約数ペア:

[(1, 256004), (2, 128002), (4, 64001), (7, 36572), (14, 18286), (28, 9143), (41, 6244), (82, 3122), (164, 1561), (223, 1148), (287, 892), (446, 574)]