172123259

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 221184000

約数和(自身を除く): 49060741

約数列:

[1, 7, 11, 47, 77, 199, 239, 329, 517, 1393, 1673, 2189, 2629, 3619, 9353, 11233, 15323, 18403, 47561, 65471, 78631, 102883, 123563, 332927, 523171, 720181, 864941, 2235367, 3662197, 15647569, 24589037, 172123259]

約数ペア:

[(1, 172123259), (7, 24589037), (11, 15647569), (47, 3662197), (77, 2235367), (199, 864941), (239, 720181), (329, 523171), (517, 332927), (1393, 123563), (1673, 102883), (2189, 78631), (2629, 65471), (3619, 47561), (9353, 18403), (11233, 15323)]