208049905

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{312857}}^1$

素因数の和:312888

約数の個数: 16

約数和(自身を含む): 300343680

約数和(自身を除く): 92293775

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 312857, 1564285, 2189999, 5944283, 10949995, 29721415, 41609981, 208049905]

約数ペア:

[(1, 208049905), (5, 41609981), (7, 29721415), (19, 10949995), (35, 5944283), (95, 2189999), (133, 1564285), (665, 312857)]