202119620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{24709}}^1$

素因数の和:25127

約数の個数: 24

約数和(自身を含む): 425506200

約数和(自身を除く): 223386580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 24709, 49418, 98836, 123545, 247090, 494180, 10105981, 20211962, 40423924, 50529905, 101059810, 202119620]

約数ペア:

[(1, 202119620), (2, 101059810), (4, 50529905), (5, 40423924), (10, 20211962), (20, 10105981), (409, 494180), (818, 247090), (1636, 123545), (2045, 98836), (4090, 49418), (8180, 24709)]