1991627905

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1\times {\mathrm{20149}}^1$

素因数の和:20580

約数の個数: 16

約数和(自身を含む): 2441696400

約数和(自身を除く): 450068495

約数列:

[1, 5, 53, 265, 373, 1865, 19769, 20149, 98845, 100745, 1067897, 5339485, 7515577, 37577885, 398325581, 1991627905]

約数ペア:

[(1, 1991627905), (5, 398325581), (53, 37577885), (265, 7515577), (373, 5339485), (1865, 1067897), (19769, 100745), (20149, 98845)]