210920180

素因数分解:

$2^2\times 5^1\times {\mathrm{10546009}}^1$

素因数の和:10546018

約数の個数: 12

約数和(自身を含む): 442932420

約数和(自身を除く): 232012240

約数列:

[1, 2, 4, 5, 10, 20, 10546009, 21092018, 42184036, 52730045, 105460090, 210920180]

約数ペア:

[(1, 210920180), (2, 105460090), (4, 52730045), (5, 42184036), (10, 21092018), (20, 10546009)]