19311280

素因数分解:

$2^4\times 5^1\times {\mathrm{241391}}^1$

素因数の和:241404

約数の個数: 20

約数和(自身を含む): 44898912

約数和(自身を除く): 25587632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241391, 482782, 965564, 1206955, 1931128, 2413910, 3862256, 4827820, 9655640, 19311280]

約数ペア:

[(1, 19311280), (2, 9655640), (4, 4827820), (5, 3862256), (8, 2413910), (10, 1931128), (16, 1206955), (20, 965564), (40, 482782), (80, 241391)]