826180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 1756440

約数和(自身を除く): 930260

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 409, 505, 818, 1010, 1636, 2020, 2045, 4090, 8180, 41309, 82618, 165236, 206545, 413090, 826180]

約数ペア:

[(1, 826180), (2, 413090), (4, 206545), (5, 165236), (10, 82618), (20, 41309), (101, 8180), (202, 4090), (404, 2045), (409, 2020), (505, 1636), (818, 1010)]