18840650

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3457}}^1$

素因数の和:3578

約数の個数: 24

約数和(自身を含む): 35375340

約数和(自身を除く): 16534690

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3457, 5450, 6914, 17285, 34570, 86425, 172850, 376813, 753626, 1884065, 3768130, 9420325, 18840650]

約数ペア:

[(1, 18840650), (2, 9420325), (5, 3768130), (10, 1884065), (25, 753626), (50, 376813), (109, 172850), (218, 86425), (545, 34570), (1090, 17285), (2725, 6914), (3457, 5450)]