25920760

素因数分解:

$2^3\times 5^1\times {\mathrm{648019}}^1$

素因数の和:648030

約数の個数: 16

約数和(自身を含む): 58321800

約数和(自身を除く): 32401040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 648019, 1296038, 2592076, 3240095, 5184152, 6480190, 12960380, 25920760]

約数ペア:

[(1, 25920760), (2, 12960380), (4, 6480190), (5, 5184152), (8, 3240095), (10, 2592076), (20, 1296038), (40, 648019)]