208027765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{87961}}^1$

素因数の和:88020

約数の個数: 16

約数和(自身を含む): 278663616

約数和(自身を除く): 70635851

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 87961, 439805, 967571, 3782323, 4837855, 18911615, 41605553, 208027765]

約数ペア:

[(1, 208027765), (5, 41605553), (11, 18911615), (43, 4837855), (55, 3782323), (215, 967571), (473, 439805), (2365, 87961)]