205328140

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{21433}}^1$

素因数の和:21921

約数の個数: 24

約数和(自身を含む): 432109440

約数和(自身を除く): 226781300

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 21433, 42866, 85732, 107165, 214330, 428660, 10266407, 20532814, 41065628, 51332035, 102664070, 205328140]

約数ペア:

[(1, 205328140), (2, 102664070), (4, 51332035), (5, 41065628), (10, 20532814), (20, 10266407), (479, 428660), (958, 214330), (1916, 107165), (2395, 85732), (4790, 42866), (9580, 21433)]