28062020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200443}}^1$

素因数の和:200459

約数の個数: 24

約数和(自身を含む): 67349184

約数和(自身を除く): 39287164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200443, 400886, 801772, 1002215, 1403101, 2004430, 2806202, 4008860, 5612404, 7015505, 14031010, 28062020]

約数ペア:

[(1, 28062020), (2, 14031010), (4, 7015505), (5, 5612404), (7, 4008860), (10, 2806202), (14, 2004430), (20, 1403101), (28, 1002215), (35, 801772), (70, 400886), (140, 200443)]