20187054980

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2022751}}^1$

素因数の和:2023259

約数の個数: 24

約数和(自身を含む): 42477792000

約数和(自身を除く): 22290737020

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 2022751, 4045502, 8091004, 10113755, 20227510, 40455020, 1009352749, 2018705498, 4037410996, 5046763745, 10093527490, 20187054980]

約数ペア:

[(1, 20187054980), (2, 10093527490), (4, 5046763745), (5, 4037410996), (10, 2018705498), (20, 1009352749), (499, 40455020), (998, 20227510), (1996, 10113755), (2495, 8091004), (4990, 4045502), (9980, 2022751)]