20159290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49169}}^1$

素因数の和:49217

約数の個数: 16

約数和(自身を含む): 37172520

約数和(自身を除く): 17013230

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49169, 98338, 245845, 491690, 2015929, 4031858, 10079645, 20159290]

約数ペア:

[(1, 20159290), (2, 10079645), (5, 4031858), (10, 2015929), (41, 491690), (82, 245845), (205, 98338), (410, 49169)]