81690845

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1484

約数の個数: 16

約数和(自身を含む): 99840000

約数和(自身を除く): 18149155

約数列:

[1, 5, 103, 127, 515, 635, 1249, 6245, 13081, 65405, 128647, 158623, 643235, 793115, 16338169, 81690845]

約数ペア:

[(1, 81690845), (5, 16338169), (103, 793115), (127, 643235), (515, 158623), (635, 128647), (1249, 65405), (6245, 13081)]