19225420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8819}}^1$

素因数の和:8937

約数の個数: 24

約数和(自身を含む): 40748400

約数和(自身を除く): 21522980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8819, 17638, 35276, 44095, 88190, 176380, 961271, 1922542, 3845084, 4806355, 9612710, 19225420]

約数ペア:

[(1, 19225420), (2, 9612710), (4, 4806355), (5, 3845084), (10, 1922542), (20, 961271), (109, 176380), (218, 88190), (436, 44095), (545, 35276), (1090, 17638), (2180, 8819)]