39941960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9161}}^1$

素因数の和:9281

約数の個数: 32

約数和(自身を含む): 90703800

約数和(自身を除く): 50761840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 9161, 18322, 36644, 45805, 73288, 91610, 183220, 366440, 998549, 1997098, 3994196, 4992745, 7988392, 9985490, 19970980, 39941960]

約数ペア:

[(1, 39941960), (2, 19970980), (4, 9985490), (5, 7988392), (8, 4992745), (10, 3994196), (20, 1997098), (40, 998549), (109, 366440), (218, 183220), (436, 91610), (545, 73288), (872, 45805), (1090, 36644), (2180, 18322), (4360, 9161)]