89902810

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{20479}}^1$

素因数の和:20925

約数の個数: 16

約数和(自身を含む): 162201600

約数和(自身を除く): 72298790

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 20479, 40958, 102395, 204790, 8990281, 17980562, 44951405, 89902810]

約数ペア:

[(1, 89902810), (2, 44951405), (5, 17980562), (10, 8990281), (439, 204790), (878, 102395), (2195, 40958), (4390, 20479)]