256248223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 329421312

約数和(自身を除く): 73173089

約数列:

[1, 7, 11, 43, 77, 193, 301, 401, 473, 1351, 2123, 2807, 3311, 4411, 8299, 14861, 17243, 30877, 58093, 77393, 91289, 120701, 189673, 541751, 639023, 851323, 1327711, 3327899, 5959261, 23295293, 36606889, 256248223]

約数ペア:

[(1, 256248223), (7, 36606889), (11, 23295293), (43, 5959261), (77, 3327899), (193, 1327711), (301, 851323), (401, 639023), (473, 541751), (1351, 189673), (2123, 120701), (2807, 91289), (3311, 77393), (4411, 58093), (8299, 30877), (14861, 17243)]