20057090

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18401}}^1$

素因数の和:18517

約数の個数: 16

約数和(自身を含む): 36435960

約数和(自身を除く): 16378870

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18401, 36802, 92005, 184010, 2005709, 4011418, 10028545, 20057090]

約数ペア:

[(1, 20057090), (2, 10028545), (5, 4011418), (10, 2005709), (109, 184010), (218, 92005), (545, 36802), (1090, 18401)]