25720580

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2903}}^1$

素因数の和:3355

約数の個数: 24

約数和(自身を含む): 54153792

約数和(自身を除く): 28433212

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2903, 4430, 5806, 8860, 11612, 14515, 29030, 58060, 1286029, 2572058, 5144116, 6430145, 12860290, 25720580]

約数ペア:

[(1, 25720580), (2, 12860290), (4, 6430145), (5, 5144116), (10, 2572058), (20, 1286029), (443, 58060), (886, 29030), (1772, 14515), (2215, 11612), (2903, 8860), (4430, 5806)]