20746656016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{265547}}^1$

素因数の和:265831

約数の個数: 40

約数和(自身を含む): 42477058080

約数和(自身を除く): 21730402064

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 257, 304, 514, 1028, 2056, 4112, 4883, 9766, 19532, 39064, 78128, 265547, 531094, 1062188, 2124376, 4248752, 5045393, 10090786, 20181572, 40363144, 68245579, 80726288, 136491158, 272982316, 545964632, 1091929264, 1296666001, 2593332002, 5186664004, 10373328008, 20746656016]

約数ペア:

[(1, 20746656016), (2, 10373328008), (4, 5186664004), (8, 2593332002), (16, 1296666001), (19, 1091929264), (38, 545964632), (76, 272982316), (152, 136491158), (257, 80726288), (304, 68245579), (514, 40363144), (1028, 20181572), (2056, 10090786), (4112, 5045393), (4883, 4248752), (9766, 2124376), (19532, 1062188), (39064, 531094), (78128, 265547)]