80487513

素因数分解:

$3^4\times {\mathrm{613}}^1\times {\mathrm{1621}}^1$

素因数の和:2246

約数の個数: 20

約数和(自身を含む): 120504868

約数和(自身を除く): 40017355

約数列:

[1, 3, 9, 27, 81, 613, 1621, 1839, 4863, 5517, 14589, 16551, 43767, 49653, 131301, 993673, 2981019, 8943057, 26829171, 80487513]

約数ペア:

[(1, 80487513), (3, 26829171), (9, 8943057), (27, 2981019), (81, 993673), (613, 131301), (1621, 49653), (1839, 43767), (4863, 16551), (5517, 14589)]