81946220

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{5779}}^1$

素因数の和:6497

約数の個数: 24

約数和(自身を含む): 172359600

約数和(自身を除く): 90413380

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 2836, 3545, 5779, 7090, 11558, 14180, 23116, 28895, 57790, 115580, 4097311, 8194622, 16389244, 20486555, 40973110, 81946220]

約数ペア:

[(1, 81946220), (2, 40973110), (4, 20486555), (5, 16389244), (10, 8194622), (20, 4097311), (709, 115580), (1418, 57790), (2836, 28895), (3545, 23116), (5779, 14180), (7090, 11558)]