20615480

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1759}}^1$

素因数の和:2063

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25954120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 1759, 2344, 2930, 3518, 5860, 7036, 8795, 11720, 14072, 17590, 35180, 70360, 515387, 1030774, 2061548, 2576935, 4123096, 5153870, 10307740, 20615480]

約数ペア:

[(1, 20615480), (2, 10307740), (4, 5153870), (5, 4123096), (8, 2576935), (10, 2061548), (20, 1030774), (40, 515387), (293, 70360), (586, 35180), (1172, 17590), (1465, 14072), (1759, 11720), (2344, 8795), (2930, 7036), (3518, 5860)]