28803140

素因数分解:

$2^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{2003}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 60600960

約数和(自身を除く): 31797820

約数列:

[1, 2, 4, 5, 10, 20, 719, 1438, 2003, 2876, 3595, 4006, 7190, 8012, 10015, 14380, 20030, 40060, 1440157, 2880314, 5760628, 7200785, 14401570, 28803140]

約数ペア:

[(1, 28803140), (2, 14401570), (4, 7200785), (5, 5760628), (10, 2880314), (20, 1440157), (719, 40060), (1438, 20030), (2003, 14380), (2876, 10015), (3595, 8012), (4006, 7190)]