28689545

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 35456400

約数和(自身を除く): 6766855

約数列:

[1, 5, 41, 205, 349, 401, 1745, 2005, 14309, 16441, 71545, 82205, 139949, 699745, 5737909, 28689545]

約数ペア:

[(1, 28689545), (5, 5737909), (41, 699745), (205, 139949), (349, 82205), (401, 71545), (1745, 16441), (2005, 14309)]