12878905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{571}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 16720704

約数和(自身を除く): 3841799

約数列:

[1, 5, 13, 65, 347, 571, 1735, 2855, 4511, 7423, 22555, 37115, 198137, 990685, 2575781, 12878905]

約数ペア:

[(1, 12878905), (5, 2575781), (13, 990685), (65, 198137), (347, 37115), (571, 22555), (1735, 7423), (2855, 4511)]