20088760

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2903}}^1$

素因数の和:3087

約数の個数: 32

約数和(自身を含む): 45476640

約数和(自身を除く): 25387880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2903, 3460, 5806, 6920, 11612, 14515, 23224, 29030, 58060, 116120, 502219, 1004438, 2008876, 2511095, 4017752, 5022190, 10044380, 20088760]

約数ペア:

[(1, 20088760), (2, 10044380), (4, 5022190), (5, 4017752), (8, 2511095), (10, 2008876), (20, 1004438), (40, 502219), (173, 116120), (346, 58060), (692, 29030), (865, 23224), (1384, 14515), (1730, 11612), (2903, 6920), (3460, 5806)]