19712650

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3617}}^1$

素因数の和:3738

約数の個数: 24

約数和(自身を含む): 37012140

約数和(自身を除く): 17299490

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3617, 5450, 7234, 18085, 36170, 90425, 180850, 394253, 788506, 1971265, 3942530, 9856325, 19712650]

約数ペア:

[(1, 19712650), (2, 9856325), (5, 3942530), (10, 1971265), (25, 788506), (50, 394253), (109, 180850), (218, 90425), (545, 36170), (1090, 18085), (2725, 7234), (3617, 5450)]