155266640

素因数分解:

$2^4\times 5^1\times {\mathrm{1940833}}^1$

素因数の和:1940846

約数の個数: 20

約数和(自身を含む): 360995124

約数和(自身を除く): 205728484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1940833, 3881666, 7763332, 9704165, 15526664, 19408330, 31053328, 38816660, 77633320, 155266640]

約数ペア:

[(1, 155266640), (2, 77633320), (4, 38816660), (5, 31053328), (8, 19408330), (10, 15526664), (16, 9704165), (20, 7763332), (40, 3881666), (80, 1940833)]