71691660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{398287}}^1$

素因数の和:398302

約数の個数: 36

約数和(自身を含む): 217465248

約数和(自身を除く): 145773588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 398287, 796574, 1194861, 1593148, 1991435, 2389722, 3584583, 3982870, 4779444, 5974305, 7169166, 7965740, 11948610, 14338332, 17922915, 23897220, 35845830, 71691660]

約数ペア:

[(1, 71691660), (2, 35845830), (3, 23897220), (4, 17922915), (5, 14338332), (6, 11948610), (9, 7965740), (10, 7169166), (12, 5974305), (15, 4779444), (18, 3982870), (20, 3584583), (30, 2389722), (36, 1991435), (45, 1593148), (60, 1194861), (90, 796574), (180, 398287)]