342640

素因数分解:

$2^4\times 5^1\times {\mathrm{4283}}^1$

素因数の和:4296

約数の個数: 20

約数和(自身を含む): 796824

約数和(自身を除く): 454184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4283, 8566, 17132, 21415, 34264, 42830, 68528, 85660, 171320, 342640]

約数ペア:

[(1, 342640), (2, 171320), (4, 85660), (5, 68528), (8, 42830), (10, 34264), (16, 21415), (20, 17132), (40, 8566), (80, 4283)]