520080820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3714863}}^1$

素因数の和:3714879

約数の個数: 24

約数和(自身を含む): 1248194304

約数和(自身を除く): 728113484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3714863, 7429726, 14859452, 18574315, 26004041, 37148630, 52008082, 74297260, 104016164, 130020205, 260040410, 520080820]

約数ペア:

[(1, 520080820), (2, 260040410), (4, 130020205), (5, 104016164), (7, 74297260), (10, 52008082), (14, 37148630), (20, 26004041), (28, 18574315), (35, 14859452), (70, 7429726), (140, 3714863)]