9421960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2161}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 21403800

約数和(自身を除く): 11981840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2161, 2180, 4322, 4360, 8644, 10805, 17288, 21610, 43220, 86440, 235549, 471098, 942196, 1177745, 1884392, 2355490, 4710980, 9421960]

約数ペア:

[(1, 9421960), (2, 4710980), (4, 2355490), (5, 1884392), (8, 1177745), (10, 942196), (20, 471098), (40, 235549), (109, 86440), (218, 43220), (436, 21610), (545, 17288), (872, 10805), (1090, 8644), (2161, 4360), (2180, 4322)]