19492940

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2383}}^1$

素因数の和:2801

約数の個数: 24

約数和(自身を含む): 41052480

約数和(自身を除く): 21559540

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 2383, 4090, 4766, 8180, 9532, 11915, 23830, 47660, 974647, 1949294, 3898588, 4873235, 9746470, 19492940]

約数ペア:

[(1, 19492940), (2, 9746470), (4, 4873235), (5, 3898588), (10, 1949294), (20, 974647), (409, 47660), (818, 23830), (1636, 11915), (2045, 9532), (2383, 8180), (4090, 4766)]