83720180

素因数分解:

$2^2\times 5^1\times {\mathrm{4186009}}^1$

素因数の和:4186018

約数の個数: 12

約数和(自身を含む): 175812420

約数和(自身を除く): 92092240

約数列:

[1, 2, 4, 5, 10, 20, 4186009, 8372018, 16744036, 20930045, 41860090, 83720180]

約数ペア:

[(1, 83720180), (2, 41860090), (4, 20930045), (5, 16744036), (10, 8372018), (20, 4186009)]