13381520

素因数分解:

$2^4\times 5^1\times {\mathrm{167269}}^1$

素因数の和:167282

約数の個数: 20

約数和(自身を含む): 31112220

約数和(自身を除く): 17730700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167269, 334538, 669076, 836345, 1338152, 1672690, 2676304, 3345380, 6690760, 13381520]

約数ペア:

[(1, 13381520), (2, 6690760), (4, 3345380), (5, 2676304), (8, 1672690), (10, 1338152), (16, 836345), (20, 669076), (40, 334538), (80, 167269)]