2912244220

素因数分解:

$2^2\times 5^1\times {\mathrm{145612211}}^1$

素因数の和:145612220

約数の個数: 12

約数和(自身を含む): 6115712904

約数和(自身を除く): 3203468684

約数列:

[1, 2, 4, 5, 10, 20, 145612211, 291224422, 582448844, 728061055, 1456122110, 2912244220]

約数ペア:

[(1, 2912244220), (2, 1456122110), (4, 728061055), (5, 582448844), (10, 291224422), (20, 145612211)]