20806870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42463}}^1$

素因数の和:42484

約数の個数: 24

約数和(自身を含む): 43568064

約数和(自身を除く): 22761194

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42463, 84926, 212315, 297241, 424630, 594482, 1486205, 2080687, 2972410, 4161374, 10403435, 20806870]

約数ペア:

[(1, 20806870), (2, 10403435), (5, 4161374), (7, 2972410), (10, 2080687), (14, 1486205), (35, 594482), (49, 424630), (70, 297241), (98, 212315), (245, 84926), (490, 42463)]