81256545

素因数分解:

$3^2\times 5^1\times {\mathrm{1805701}}^1$

素因数の和:1805712

約数の個数: 12

約数和(自身を含む): 140844756

約数和(自身を除く): 59588211

約数列:

[1, 3, 5, 9, 15, 45, 1805701, 5417103, 9028505, 16251309, 27085515, 81256545]

約数ペア:

[(1, 81256545), (3, 27085515), (5, 16251309), (9, 9028505), (15, 5417103), (45, 1805701)]