285003920

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4157}}^1$

素因数の和:5027

約数の個数: 40

約数和(自身を含む): 663566904

約数和(自身を除く): 378562984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 1714, 3428, 4157, 4285, 6856, 8314, 8570, 13712, 16628, 17140, 20785, 33256, 34280, 41570, 66512, 68560, 83140, 166280, 332560, 3562549, 7125098, 14250196, 17812745, 28500392, 35625490, 57000784, 71250980, 142501960, 285003920]

約数ペア:

[(1, 285003920), (2, 142501960), (4, 71250980), (5, 57000784), (8, 35625490), (10, 28500392), (16, 17812745), (20, 14250196), (40, 7125098), (80, 3562549), (857, 332560), (1714, 166280), (3428, 83140), (4157, 68560), (4285, 66512), (6856, 41570), (8314, 34280), (8570, 33256), (13712, 20785), (16628, 17140)]