81032015

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 98642016

約数和(自身を除く): 17610001

約数列:

[1, 5, 131, 193, 641, 655, 965, 3205, 25283, 83971, 123713, 126415, 419855, 618565, 16206403, 81032015]

約数ペア:

[(1, 81032015), (5, 16206403), (131, 618565), (193, 419855), (641, 126415), (655, 123713), (965, 83971), (3205, 25283)]