28017290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{400247}}^1$

素因数の和:400261

約数の個数: 16

約数和(自身を含む): 57635712

約数和(自身を除く): 29618422

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 400247, 800494, 2001235, 2801729, 4002470, 5603458, 14008645, 28017290]

約数ペア:

[(1, 28017290), (2, 14008645), (5, 5603458), (7, 4002470), (10, 2801729), (14, 2001235), (35, 800494), (70, 400247)]