1898889680

素因数分解:

$2^4\times 5^1\times {\mathrm{23736121}}^1$

素因数の和:23736134

約数の個数: 20

約数和(自身を含む): 4414918692

約数和(自身を除く): 2516029012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 23736121, 47472242, 94944484, 118680605, 189888968, 237361210, 379777936, 474722420, 949444840, 1898889680]

約数ペア:

[(1, 1898889680), (2, 949444840), (4, 474722420), (5, 379777936), (8, 237361210), (10, 189888968), (16, 118680605), (20, 94944484), (40, 47472242), (80, 23736121)]