20826440

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1777}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 47045880

約数和(自身を除く): 26219440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 1777, 2344, 2930, 3554, 5860, 7108, 8885, 11720, 14216, 17770, 35540, 71080, 520661, 1041322, 2082644, 2603305, 4165288, 5206610, 10413220, 20826440]

約数ペア:

[(1, 20826440), (2, 10413220), (4, 5206610), (5, 4165288), (8, 2603305), (10, 2082644), (20, 1041322), (40, 520661), (293, 71080), (586, 35540), (1172, 17770), (1465, 14216), (1777, 11720), (2344, 8885), (2930, 7108), (3554, 5860)]