81634040

素因数分解:

$2^3\times 5^1\times {\mathrm{2040851}}^1$

素因数の和:2040862

約数の個数: 16

約数和(自身を含む): 183676680

約数和(自身を除く): 102042640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2040851, 4081702, 8163404, 10204255, 16326808, 20408510, 40817020, 81634040]

約数ペア:

[(1, 81634040), (2, 40817020), (4, 20408510), (5, 16326808), (8, 10204255), (10, 8163404), (20, 4081702), (40, 2040851)]