26720180

素因数分解:

$2^2\times 5^1\times {\mathrm{1336009}}^1$

素因数の和:1336018

約数の個数: 12

約数和(自身を含む): 56112420

約数和(自身を除く): 29392240

約数列:

[1, 2, 4, 5, 10, 20, 1336009, 2672018, 5344036, 6680045, 13360090, 26720180]

約数ペア:

[(1, 26720180), (2, 13360090), (4, 6680045), (5, 5344036), (10, 2672018), (20, 1336009)]