219702020

素因数分解:

$2^2\times 5^1\times {\mathrm{10985101}}^1$

素因数の和:10985110

約数の個数: 12

約数和(自身を含む): 461374284

約数和(自身を除く): 241672264

約数列:

[1, 2, 4, 5, 10, 20, 10985101, 21970202, 43940404, 54925505, 109851010, 219702020]

約数ペア:

[(1, 219702020), (2, 109851010), (4, 54925505), (5, 43940404), (10, 21970202), (20, 10985101)]