515486881

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1279}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 656015360

約数和(自身を除く): 140528479

約数列:

[1, 7, 13, 43, 91, 103, 301, 559, 721, 1279, 1339, 3913, 4429, 8953, 9373, 16627, 31003, 54997, 57577, 116389, 131737, 384979, 403039, 714961, 922159, 1712581, 5004727, 5664691, 11988067, 39652837, 73640983, 515486881]

約数ペア:

[(1, 515486881), (7, 73640983), (13, 39652837), (43, 11988067), (91, 5664691), (103, 5004727), (301, 1712581), (559, 922159), (721, 714961), (1279, 403039), (1339, 384979), (3913, 131737), (4429, 116389), (8953, 57577), (9373, 54997), (16627, 31003)]