256217727

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 372556800

約数和(自身を除く): 116339073

約数列:

[1, 3, 17, 47, 51, 139, 141, 417, 769, 799, 2307, 2363, 2397, 6533, 7089, 13073, 19599, 36143, 39219, 106891, 108429, 111061, 320673, 333183, 614431, 1817147, 1843293, 5023877, 5451441, 15071631, 85405909, 256217727]

約数ペア:

[(1, 256217727), (3, 85405909), (17, 15071631), (47, 5451441), (51, 5023877), (139, 1843293), (141, 1817147), (417, 614431), (769, 333183), (799, 320673), (2307, 111061), (2363, 108429), (2397, 106891), (6533, 39219), (7089, 36143), (13073, 19599)]