20090870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28297}}^1$

素因数の和:28375

約数の個数: 16

約数和(自身を含む): 36674208

約数和(自身を除く): 16583338

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28297, 56594, 141485, 282970, 2009087, 4018174, 10045435, 20090870]

約数ペア:

[(1, 20090870), (2, 10045435), (5, 4018174), (10, 2009087), (71, 282970), (142, 141485), (355, 56594), (710, 28297)]