8049304420

素因数分解:

$2^2\times 5^1\times {\mathrm{402465221}}^1$

素因数の和:402465230

約数の個数: 12

約数和(自身を含む): 16903539324

約数和(自身を除く): 8854234904

約数列:

[1, 2, 4, 5, 10, 20, 402465221, 804930442, 1609860884, 2012326105, 4024652210, 8049304420]

約数ペア:

[(1, 8049304420), (2, 4024652210), (4, 2012326105), (5, 1609860884), (10, 804930442), (20, 402465221)]