2005220798

素因数分解:

$2^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{360781}}^1$

素因数の和:361187

約数の個数: 16

約数和(自身を含む): 3446189664

約数和(自身を除く): 1440968866

約数列:

[1, 2, 7, 14, 397, 794, 2779, 5558, 360781, 721562, 2525467, 5050934, 143230057, 286460114, 1002610399, 2005220798]

約数ペア:

[(1, 2005220798), (2, 1002610399), (7, 286460114), (14, 143230057), (397, 5050934), (794, 2525467), (2779, 721562), (5558, 360781)]