19700270

素因数分解:

$2^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2221}}^1$

素因数の和:3115

約数の個数: 16

約数和(自身を含む): 35516448

約数和(自身を除く): 15816178

約数列:

[1, 2, 5, 10, 887, 1774, 2221, 4435, 4442, 8870, 11105, 22210, 1970027, 3940054, 9850135, 19700270]

約数ペア:

[(1, 19700270), (2, 9850135), (5, 3940054), (10, 1970027), (887, 22210), (1774, 11105), (2221, 8870), (4435, 4442)]