1289915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 16

約数和(自身を含む): 1728000

約数和(自身を除く): 438085

約数列:

[1, 5, 11, 47, 55, 235, 499, 517, 2495, 2585, 5489, 23453, 27445, 117265, 257983, 1289915]

約数ペア:

[(1, 1289915), (5, 257983), (11, 117265), (47, 27445), (55, 23453), (235, 5489), (499, 2585), (517, 2495)]