204328220

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{24979}}^1$

素因数の和:25397

約数の個数: 24

約数和(自身を含む): 430155600

約数和(自身を除く): 225827380

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 24979, 49958, 99916, 124895, 249790, 499580, 10216411, 20432822, 40865644, 51082055, 102164110, 204328220]

約数ペア:

[(1, 204328220), (2, 102164110), (4, 51082055), (5, 40865644), (10, 20432822), (20, 10216411), (409, 499580), (818, 249790), (1636, 124895), (2045, 99916), (4090, 49958), (8180, 24979)]