208821095

素因数分解:

$5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{10789}}^1$

素因数の和:10887

約数の個数: 24

約数和(自身を含む): 295214400

約数和(自身を除く): 86393305

約数列:

[1, 5, 7, 35, 49, 79, 245, 395, 553, 2765, 3871, 10789, 19355, 53945, 75523, 377615, 528661, 852331, 2643305, 4261655, 5966317, 29831585, 41764219, 208821095]

約数ペア:

[(1, 208821095), (5, 41764219), (7, 29831585), (35, 5966317), (49, 4261655), (79, 2643305), (245, 852331), (395, 528661), (553, 377615), (2765, 75523), (3871, 53945), (10789, 19355)]