20348817215

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1\times {\mathrm{197341}}^1$

素因数の和:197890

約数の個数: 16

約数和(自身を含む): 25064012736

約数和(自身を除く): 4715195521

約数列:

[1, 5, 41, 205, 503, 2515, 20623, 103115, 197341, 986705, 8090981, 40454905, 99262523, 496312615, 4069763443, 20348817215]

約数ペア:

[(1, 20348817215), (5, 4069763443), (41, 496312615), (205, 99262523), (503, 40454905), (2515, 8090981), (20623, 986705), (103115, 197341)]