2028778885

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{423103}}^1$

素因数の和:423252

約数の個数: 16

約数和(自身を含む): 2802640896

約数和(自身を除く): 773862011

約数列:

[1, 5, 7, 35, 137, 685, 959, 4795, 423103, 2115515, 2961721, 14808605, 57965111, 289825555, 405755777, 2028778885]

約数ペア:

[(1, 2028778885), (5, 405755777), (7, 289825555), (35, 57965111), (137, 14808605), (685, 2961721), (959, 2115515), (4795, 423103)]