890394220

素因数分解:

$2^2\times 5^1\times {\mathrm{44519711}}^1$

素因数の和:44519720

約数の個数: 12

約数和(自身を含む): 1869827904

約数和(自身を除く): 979433684

約数列:

[1, 2, 4, 5, 10, 20, 44519711, 89039422, 178078844, 222598555, 445197110, 890394220]

約数ペア:

[(1, 890394220), (2, 445197110), (4, 222598555), (5, 178078844), (10, 89039422), (20, 44519711)]