20078090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28279}}^1$

素因数の和:28357

約数の個数: 16

約数和(自身を含む): 36650880

約数和(自身を除く): 16572790

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28279, 56558, 141395, 282790, 2007809, 4015618, 10039045, 20078090]

約数ペア:

[(1, 20078090), (2, 10039045), (5, 4015618), (10, 2007809), (71, 282790), (142, 141395), (355, 56558), (710, 28279)]