81865510

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{355937}}^1$

素因数の和:355967

約数の個数: 16

約数和(自身を含む): 153765216

約数和(自身を除く): 71899706

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 355937, 711874, 1779685, 3559370, 8186551, 16373102, 40932755, 81865510]

約数ペア:

[(1, 81865510), (2, 40932755), (5, 16373102), (10, 8186551), (23, 3559370), (46, 1779685), (115, 711874), (230, 355937)]