13245520

素因数分解:

$2^4\times 5^1\times {\mathrm{165569}}^1$

素因数の和:165582

約数の個数: 20

約数和(自身を含む): 30796020

約数和(自身を除く): 17550500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165569, 331138, 662276, 827845, 1324552, 1655690, 2649104, 3311380, 6622760, 13245520]

約数ペア:

[(1, 13245520), (2, 6622760), (4, 3311380), (5, 2649104), (8, 1655690), (10, 1324552), (16, 827845), (20, 662276), (40, 331138), (80, 165569)]