20191900

素因数分解:

$2^2\times 5^2\times {\mathrm{201919}}^1$

素因数の和:201933

約数の個数: 18

約数和(自身を含む): 43816640

約数和(自身を除く): 23624740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201919, 403838, 807676, 1009595, 2019190, 4038380, 5047975, 10095950, 20191900]

約数ペア:

[(1, 20191900), (2, 10095950), (4, 5047975), (5, 4038380), (10, 2019190), (20, 1009595), (25, 807676), (50, 403838), (100, 201919)]