56278180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401987}}^1$

素因数の和:402003

約数の個数: 24

約数和(自身を含む): 135067968

約数和(自身を除く): 78789788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401987, 803974, 1607948, 2009935, 2813909, 4019870, 5627818, 8039740, 11255636, 14069545, 28139090, 56278180]

約数ペア:

[(1, 56278180), (2, 28139090), (4, 14069545), (5, 11255636), (7, 8039740), (10, 5627818), (14, 4019870), (20, 2813909), (28, 2009935), (35, 1607948), (70, 803974), (140, 401987)]