28556945

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 35259840

約数和(自身を除く): 6702895

約数列:

[1, 5, 43, 215, 317, 419, 1585, 2095, 13631, 18017, 68155, 90085, 132823, 664115, 5711389, 28556945]

約数ペア:

[(1, 28556945), (5, 5711389), (43, 664115), (215, 132823), (317, 90085), (419, 68155), (1585, 18017), (2095, 13631)]