20194420

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1283}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 42495264

約数和(自身を除く): 22300844

約数列:

[1, 2, 4, 5, 10, 20, 787, 1283, 1574, 2566, 3148, 3935, 5132, 6415, 7870, 12830, 15740, 25660, 1009721, 2019442, 4038884, 5048605, 10097210, 20194420]

約数ペア:

[(1, 20194420), (2, 10097210), (4, 5048605), (5, 4038884), (10, 2019442), (20, 1009721), (787, 25660), (1283, 15740), (1574, 12830), (2566, 7870), (3148, 6415), (3935, 5132)]