20512960156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3686729}}^1$

素因数の和:3686853

約数の個数: 24

約数和(自身を含む): 39020350320

約数和(自身を除く): 18507390164

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 5564, 3686729, 7373458, 14746916, 47927477, 95854954, 191709908, 394480003, 788960006, 1577920012, 5128240039, 10256480078, 20512960156]

約数ペア:

[(1, 20512960156), (2, 10256480078), (4, 5128240039), (13, 1577920012), (26, 788960006), (52, 394480003), (107, 191709908), (214, 95854954), (428, 47927477), (1391, 14746916), (2782, 7373458), (5564, 3686729)]