81814855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{7901}}^1$

素因数の和:8034

約数の個数: 16

約数和(自身を含む): 104306400

約数和(自身を除く): 22491545

約数列:

[1, 5, 19, 95, 109, 545, 2071, 7901, 10355, 39505, 150119, 750595, 861209, 4306045, 16362971, 81814855]

約数ペア:

[(1, 81814855), (5, 16362971), (19, 4306045), (95, 861209), (109, 750595), (545, 150119), (2071, 39505), (7901, 10355)]