4990445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 6367680

約数和(自身を除く): 1377235

約数列:

[1, 5, 19, 95, 131, 401, 655, 2005, 2489, 7619, 12445, 38095, 52531, 262655, 998089, 4990445]

約数ペア:

[(1, 4990445), (5, 998089), (19, 262655), (95, 52531), (131, 38095), (401, 12445), (655, 7619), (2005, 2489)]