12820895

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 15914880

約数和(自身を除く): 3093985

約数列:

[1, 5, 47, 89, 235, 445, 613, 3065, 4183, 20915, 28811, 54557, 144055, 272785, 2564179, 12820895]

約数ペア:

[(1, 12820895), (5, 2564179), (47, 272785), (89, 144055), (235, 54557), (445, 28811), (613, 20915), (3065, 4183)]