2220305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 2851200

約数和(自身を除く): 630895

約数列:

[1, 5, 23, 43, 115, 215, 449, 989, 2245, 4945, 10327, 19307, 51635, 96535, 444061, 2220305]

約数ペア:

[(1, 2220305), (5, 444061), (23, 96535), (43, 51635), (115, 19307), (215, 10327), (449, 4945), (989, 2245)]