13216880

素因数分解:

$2^4\times 5^1\times {\mathrm{165211}}^1$

素因数の和:165224

約数の個数: 20

約数和(自身を含む): 30729432

約数和(自身を除く): 17512552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165211, 330422, 660844, 826055, 1321688, 1652110, 2643376, 3304220, 6608440, 13216880]

約数ペア:

[(1, 13216880), (2, 6608440), (4, 3304220), (5, 2643376), (8, 1652110), (10, 1321688), (16, 826055), (20, 660844), (40, 330422), (80, 165211)]