20161976620

素因数分解:

$2^2\times 5^1\times {\mathrm{1008098831}}^1$

素因数の和:1008098840

約数の個数: 12

約数和(自身を含む): 42340150944

約数和(自身を除く): 22178174324

約数列:

[1, 2, 4, 5, 10, 20, 1008098831, 2016197662, 4032395324, 5040494155, 10080988310, 20161976620]

約数ペア:

[(1, 20161976620), (2, 10080988310), (4, 5040494155), (5, 4032395324), (10, 2016197662), (20, 1008098831)]