19745780

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9227}}^1$

素因数の和:9343

約数の個数: 24

約数和(自身を含む): 41858208

約数和(自身を除く): 22112428

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9227, 18454, 36908, 46135, 92270, 184540, 987289, 1974578, 3949156, 4936445, 9872890, 19745780]

約数ペア:

[(1, 19745780), (2, 9872890), (4, 4936445), (5, 3949156), (10, 1974578), (20, 987289), (107, 184540), (214, 92270), (428, 46135), (535, 36908), (1070, 18454), (2140, 9227)]