11891900

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1091}}^1$

素因数の和:1214

約数の個数: 36

約数和(自身を含む): 26066040

約数和(自身を除く): 14174140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 1091, 2180, 2182, 2725, 4364, 5450, 5455, 10900, 10910, 21820, 27275, 54550, 109100, 118919, 237838, 475676, 594595, 1189190, 2378380, 2972975, 5945950, 11891900]

約数ペア:

[(1, 11891900), (2, 5945950), (4, 2972975), (5, 2378380), (10, 1189190), (20, 594595), (25, 475676), (50, 237838), (100, 118919), (109, 109100), (218, 54550), (436, 27275), (545, 21820), (1090, 10910), (1091, 10900), (2180, 5455), (2182, 5450), (2725, 4364)]