31172880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{129887}}^1$

素因数の和:129903

約数の個数: 40

約数和(自身を含む): 96636672

約数和(自身を除く): 65463792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 129887, 259774, 389661, 519548, 649435, 779322, 1039096, 1298870, 1558644, 1948305, 2078192, 2597740, 3117288, 3896610, 5195480, 6234576, 7793220, 10390960, 15586440, 31172880]

約数ペア:

[(1, 31172880), (2, 15586440), (3, 10390960), (4, 7793220), (5, 6234576), (6, 5195480), (8, 3896610), (10, 3117288), (12, 2597740), (15, 2078192), (16, 1948305), (20, 1558644), (24, 1298870), (30, 1039096), (40, 779322), (48, 649435), (60, 519548), (80, 389661), (120, 259774), (240, 129887)]