165622640

素因数分解:

$2^4\times 5^1\times {\mathrm{2070283}}^1$

素因数の和:2070296

約数の個数: 20

約数和(自身を含む): 385072824

約数和(自身を除く): 219450184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2070283, 4140566, 8281132, 10351415, 16562264, 20702830, 33124528, 41405660, 82811320, 165622640]

約数ペア:

[(1, 165622640), (2, 82811320), (4, 41405660), (5, 33124528), (8, 20702830), (10, 16562264), (16, 10351415), (20, 8281132), (40, 4140566), (80, 2070283)]