289260520

素因数分解:

$2^3\times 5^1\times {\mathrm{2549}}^1\times {\mathrm{2837}}^1$

素因数の和:5397

約数の個数: 32

約数和(自身を含む): 651321000

約数和(自身を除く): 362060480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2549, 2837, 5098, 5674, 10196, 11348, 12745, 14185, 20392, 22696, 25490, 28370, 50980, 56740, 101960, 113480, 7231513, 14463026, 28926052, 36157565, 57852104, 72315130, 144630260, 289260520]

約数ペア:

[(1, 289260520), (2, 144630260), (4, 72315130), (5, 57852104), (8, 36157565), (10, 28926052), (20, 14463026), (40, 7231513), (2549, 113480), (2837, 101960), (5098, 56740), (5674, 50980), (10196, 28370), (11348, 25490), (12745, 22696), (14185, 20392)]