85812290

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20981}}^1$

素因数の和:21397

約数の個数: 16

約数和(自身を含む): 154847160

約数和(自身を除く): 69034870

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 20981, 41962, 104905, 209810, 8581229, 17162458, 42906145, 85812290]

約数ペア:

[(1, 85812290), (2, 42906145), (5, 17162458), (10, 8581229), (409, 209810), (818, 104905), (2045, 41962), (4090, 20981)]