212973740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1521241}}^1$

素因数の和:1521257

約数の個数: 24

約数和(自身を含む): 511137312

約数和(自身を除く): 298163572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1521241, 3042482, 6084964, 7606205, 10648687, 15212410, 21297374, 30424820, 42594748, 53243435, 106486870, 212973740]

約数ペア:

[(1, 212973740), (2, 106486870), (4, 53243435), (5, 42594748), (7, 30424820), (10, 21297374), (14, 15212410), (20, 10648687), (28, 7606205), (35, 6084964), (70, 3042482), (140, 1521241)]