81003040

素因数分解:

$2^5\times 5^1\times {\mathrm{506269}}^1$

素因数の和:506284

約数の個数: 24

約数和(自身を含む): 191370060

約数和(自身を除く): 110367020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 506269, 1012538, 2025076, 2531345, 4050152, 5062690, 8100304, 10125380, 16200608, 20250760, 40501520, 81003040]

約数ペア:

[(1, 81003040), (2, 40501520), (4, 20250760), (5, 16200608), (8, 10125380), (10, 8100304), (16, 5062690), (20, 4050152), (32, 2531345), (40, 2025076), (80, 1012538), (160, 506269)]