71888220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{399379}}^1$

素因数の和:399394

約数の個数: 36

約数和(自身を含む): 218061480

約数和(自身を除く): 146173260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 399379, 798758, 1198137, 1597516, 1996895, 2396274, 3594411, 3993790, 4792548, 5990685, 7188822, 7987580, 11981370, 14377644, 17972055, 23962740, 35944110, 71888220]

約数ペア:

[(1, 71888220), (2, 35944110), (3, 23962740), (4, 17972055), (5, 14377644), (6, 11981370), (9, 7987580), (10, 7188822), (12, 5990685), (15, 4792548), (18, 3993790), (20, 3594411), (30, 2396274), (36, 1996895), (45, 1597516), (60, 1198137), (90, 798758), (180, 399379)]