20658256

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{4073}}^1$

素因数の和:4398

約数の個数: 20

約数和(自身を含む): 40161492

約数和(自身を除く): 19503236

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 4073, 5072, 8146, 16292, 32584, 65168, 1291141, 2582282, 5164564, 10329128, 20658256]

約数ペア:

[(1, 20658256), (2, 10329128), (4, 5164564), (8, 2582282), (16, 1291141), (317, 65168), (634, 32584), (1268, 16292), (2536, 8146), (4073, 5072)]