19119820

素因数分解:

$2^2\times 5^1\times {\mathrm{955991}}^1$

素因数の和:956000

約数の個数: 12

約数和(自身を含む): 40151664

約数和(自身を除く): 21031844

約数列:

[1, 2, 4, 5, 10, 20, 955991, 1911982, 3823964, 4779955, 9559910, 19119820]

約数ペア:

[(1, 19119820), (2, 9559910), (4, 4779955), (5, 3823964), (10, 1911982), (20, 955991)]