25820346820

素因数分解:

$2^2\times 5^1\times {\mathrm{1291017341}}^1$

素因数の和:1291017350

約数の個数: 12

約数和(自身を含む): 54222728364

約数和(自身を除く): 28402381544

約数列:

[1, 2, 4, 5, 10, 20, 1291017341, 2582034682, 5164069364, 6455086705, 12910173410, 25820346820]

約数ペア:

[(1, 25820346820), (2, 12910173410), (4, 6455086705), (5, 5164069364), (10, 2582034682), (20, 1291017341)]