2008045180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{400009}}^1$

素因数の和:400269

約数の個数: 24

約数和(自身を含む): 4233705840

約数和(自身を除く): 2225660660

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 400009, 800018, 1600036, 2000045, 4000090, 8000180, 100402259, 200804518, 401609036, 502011295, 1004022590, 2008045180]

約数ペア:

[(1, 2008045180), (2, 1004022590), (4, 502011295), (5, 401609036), (10, 200804518), (20, 100402259), (251, 8000180), (502, 4000090), (1004, 2000045), (1255, 1600036), (2510, 800018), (5020, 400009)]