28712605

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1609}}^1$

素因数の和:1740

約数の個数: 16

約数和(自身を含む): 35703360

約数和(自身を除く): 6990755

約数列:

[1, 5, 43, 83, 215, 415, 1609, 3569, 8045, 17845, 69187, 133547, 345935, 667735, 5742521, 28712605]

約数ペア:

[(1, 28712605), (5, 5742521), (43, 667735), (83, 345935), (215, 133547), (415, 69187), (1609, 17845), (3569, 8045)]