16940180

素因数分解:

$2^2\times 5^1\times {\mathrm{847009}}^1$

素因数の和:847018

約数の個数: 12

約数和(自身を含む): 35574420

約数和(自身を除く): 18634240

約数列:

[1, 2, 4, 5, 10, 20, 847009, 1694018, 3388036, 4235045, 8470090, 16940180]

約数ペア:

[(1, 16940180), (2, 8470090), (4, 4235045), (5, 3388036), (10, 1694018), (20, 847009)]