128780485

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1\times {\mathrm{1049}}^1$

素因数の和:1668

約数の個数: 16

約数和(自身を含む): 158558400

約数和(自身を除く): 29777915

約数列:

[1, 5, 43, 215, 571, 1049, 2855, 5245, 24553, 45107, 122765, 225535, 598979, 2994895, 25756097, 128780485]

約数ペア:

[(1, 128780485), (5, 25756097), (43, 2994895), (215, 598979), (571, 225535), (1049, 122765), (2855, 45107), (5245, 24553)]