19480180

素因数分解:

$2^2\times 5^1\times {\mathrm{974009}}^1$

素因数の和:974018

約数の個数: 12

約数和(自身を含む): 40908420

約数和(自身を除く): 21428240

約数列:

[1, 2, 4, 5, 10, 20, 974009, 1948018, 3896036, 4870045, 9740090, 19480180]

約数ペア:

[(1, 19480180), (2, 9740090), (4, 4870045), (5, 3896036), (10, 1948018), (20, 974009)]