20380845

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28909}}^1$

素因数の和:28964

約数の個数: 16

約数和(自身を含む): 33304320

約数和(自身を除く): 12923475

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28909, 86727, 144545, 433635, 1358723, 4076169, 6793615, 20380845]

約数ペア:

[(1, 20380845), (3, 6793615), (5, 4076169), (15, 1358723), (47, 433635), (141, 144545), (235, 86727), (705, 28909)]