20677985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{709}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 26241600

約数和(自身を除く): 5563615

約数列:

[1, 5, 19, 95, 307, 709, 1535, 3545, 5833, 13471, 29165, 67355, 217663, 1088315, 4135597, 20677985]

約数ペア:

[(1, 20677985), (5, 4135597), (19, 1088315), (95, 217663), (307, 67355), (709, 29165), (1535, 13471), (3545, 5833)]