20180681276

素因数分解:

$2^2\times 7^1\times {\mathrm{720738617}}^1$

素因数の和:720738628

約数の個数: 12

約数和(自身を含む): 40361362608

約数和(自身を除く): 20180681332

約数列:

[1, 2, 4, 7, 14, 28, 720738617, 1441477234, 2882954468, 5045170319, 10090340638, 20180681276]

約数ペア:

[(1, 20180681276), (2, 10090340638), (4, 5045170319), (7, 2882954468), (14, 1441477234), (28, 720738617)]