12986780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{22391}}^1$

素因数の和:22429

約数の個数: 24

約数和(自身を含む): 28213920

約数和(自身を除く): 15227140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 22391, 44782, 89564, 111955, 223910, 447820, 649339, 1298678, 2597356, 3246695, 6493390, 12986780]

約数ペア:

[(1, 12986780), (2, 6493390), (4, 3246695), (5, 2597356), (10, 1298678), (20, 649339), (29, 447820), (58, 223910), (116, 111955), (145, 89564), (290, 44782), (580, 22391)]