19207420

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1427}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 40423824

約数和(自身を除く): 21216404

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1427, 2692, 2854, 3365, 5708, 6730, 7135, 13460, 14270, 28540, 960371, 1920742, 3841484, 4801855, 9603710, 19207420]

約数ペア:

[(1, 19207420), (2, 9603710), (4, 4801855), (5, 3841484), (10, 1920742), (20, 960371), (673, 28540), (1346, 14270), (1427, 13460), (2692, 7135), (2854, 6730), (3365, 5708)]