2108804540

素因数分解:

$2^2\times 5^1\times {\mathrm{105440227}}^1$

素因数の和:105440236

約数の個数: 12

約数和(自身を含む): 4428489576

約数和(自身を除く): 2319685036

約数列:

[1, 2, 4, 5, 10, 20, 105440227, 210880454, 421760908, 527201135, 1054402270, 2108804540]

約数ペア:

[(1, 2108804540), (2, 1054402270), (4, 527201135), (5, 421760908), (10, 210880454), (20, 105440227)]