81312355

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{2887}}^1$

素因数の和:3066

約数の個数: 16

約数和(自身を含む): 100641024

約数和(自身を除く): 19328669

約数列:

[1, 5, 43, 131, 215, 655, 2887, 5633, 14435, 28165, 124141, 378197, 620705, 1890985, 16262471, 81312355]

約数ペア:

[(1, 81312355), (5, 16262471), (43, 1890985), (131, 620705), (215, 378197), (655, 124141), (2887, 28165), (5633, 14435)]