2108804420

素因数分解:

$2^2\times 5^1\times {\mathrm{105440221}}^1$

素因数の和:105440230

約数の個数: 12

約数和(自身を含む): 4428489324

約数和(自身を除く): 2319684904

約数列:

[1, 2, 4, 5, 10, 20, 105440221, 210880442, 421760884, 527201105, 1054402210, 2108804420]

約数ペア:

[(1, 2108804420), (2, 1054402210), (4, 527201105), (5, 421760884), (10, 210880442), (20, 105440221)]