205480079

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{220709}}^1$

素因数の和:220742

約数の個数: 12

約数和(自身を含む): 251609400

約数和(自身を除く): 46129321

約数列:

[1, 7, 19, 49, 133, 931, 220709, 1544963, 4193471, 10814741, 29354297, 205480079]

約数ペア:

[(1, 205480079), (7, 29354297), (19, 10814741), (49, 4193471), (133, 1544963), (931, 220709)]