257604808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{13627}}^1$

素因数の和:13789

約数の個数: 32

約数和(自身を含む): 515138400

約数和(自身を除く): 257533592

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1112, 2363, 4726, 9452, 13627, 18904, 27254, 54508, 109016, 231659, 463318, 926636, 1853272, 1894153, 3788306, 7576612, 15153224, 32200601, 64401202, 128802404, 257604808]

約数ペア:

[(1, 257604808), (2, 128802404), (4, 64401202), (8, 32200601), (17, 15153224), (34, 7576612), (68, 3788306), (136, 1894153), (139, 1853272), (278, 926636), (556, 463318), (1112, 231659), (2363, 109016), (4726, 54508), (9452, 27254), (13627, 18904)]