51887810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399137}}^1$

素因数の和:399157

約数の個数: 16

約数和(自身を含む): 100582776

約数和(自身を除く): 48694966

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 399137, 798274, 1995685, 3991370, 5188781, 10377562, 25943905, 51887810]

約数ペア:

[(1, 51887810), (2, 25943905), (5, 10377562), (10, 5188781), (13, 3991370), (26, 1995685), (65, 798274), (130, 399137)]