20191220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144223}}^1$

素因数の和:144239

約数の個数: 24

約数和(自身を含む): 48459264

約数和(自身を除く): 28268044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144223, 288446, 576892, 721115, 1009561, 1442230, 2019122, 2884460, 4038244, 5047805, 10095610, 20191220]

約数ペア:

[(1, 20191220), (2, 10095610), (4, 5047805), (5, 4038244), (7, 2884460), (10, 2019122), (14, 1442230), (20, 1009561), (28, 721115), (35, 576892), (70, 288446), (140, 144223)]