20168072920

素因数分解:

$2^3\times 5^1\times {\mathrm{504201823}}^1$

素因数の和:504201834

約数の個数: 16

約数和(自身を含む): 45378164160

約数和(自身を除く): 25210091240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504201823, 1008403646, 2016807292, 2521009115, 4033614584, 5042018230, 10084036460, 20168072920]

約数ペア:

[(1, 20168072920), (2, 10084036460), (4, 5042018230), (5, 4033614584), (8, 2521009115), (10, 2016807292), (20, 1008403646), (40, 504201823)]