1980205276

素因数分解:

$2^2\times 7^1\times {\mathrm{70721617}}^1$

素因数の和:70721628

約数の個数: 12

約数和(自身を含む): 3960410608

約数和(自身を除く): 1980205332

約数列:

[1, 2, 4, 7, 14, 28, 70721617, 141443234, 282886468, 495051319, 990102638, 1980205276]

約数ペア:

[(1, 1980205276), (2, 990102638), (4, 495051319), (7, 282886468), (14, 141443234), (28, 70721617)]