19119640

素因数分解:

$2^3\times 5^1\times {\mathrm{477991}}^1$

素因数の和:478002

約数の個数: 16

約数和(自身を含む): 43019280

約数和(自身を除く): 23899640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 477991, 955982, 1911964, 2389955, 3823928, 4779910, 9559820, 19119640]

約数ペア:

[(1, 19119640), (2, 9559820), (4, 4779910), (5, 3823928), (8, 2389955), (10, 1911964), (20, 955982), (40, 477991)]