20280555

素因数分解:

$3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1627}}^1$

素因数の和:1915

約数の個数: 24

約数和(自身を含む): 35301552

約数和(自身を除く): 15020997

約数列:

[1, 3, 5, 9, 15, 45, 277, 831, 1385, 1627, 2493, 4155, 4881, 8135, 12465, 14643, 24405, 73215, 450679, 1352037, 2253395, 4056111, 6760185, 20280555]

約数ペア:

[(1, 20280555), (3, 6760185), (5, 4056111), (9, 2253395), (15, 1352037), (45, 450679), (277, 73215), (831, 24405), (1385, 14643), (1627, 12465), (2493, 8135), (4155, 4881)]