20461040

素因数分解:

$2^4\times 5^1\times {\mathrm{255763}}^1$

素因数の和:255776

約数の個数: 20

約数和(自身を含む): 47572104

約数和(自身を除く): 27111064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255763, 511526, 1023052, 1278815, 2046104, 2557630, 4092208, 5115260, 10230520, 20461040]

約数ペア:

[(1, 20461040), (2, 10230520), (4, 5115260), (5, 4092208), (8, 2557630), (10, 2046104), (16, 1278815), (20, 1023052), (40, 511526), (80, 255763)]