27980005

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 34191360

約数和(自身を除く): 6211355

約数列:

[1, 5, 127, 139, 317, 635, 695, 1585, 17653, 40259, 44063, 88265, 201295, 220315, 5596001, 27980005]

約数ペア:

[(1, 27980005), (5, 5596001), (127, 220315), (139, 201295), (317, 88265), (635, 44063), (695, 40259), (1585, 17653)]