2478660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 7022400

約数和(自身を除く): 4543740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 379, 436, 545, 654, 758, 1090, 1137, 1308, 1516, 1635, 1895, 2180, 2274, 3270, 3790, 4548, 5685, 6540, 7580, 11370, 22740, 41311, 82622, 123933, 165244, 206555, 247866, 413110, 495732, 619665, 826220, 1239330, 2478660]

約数ペア:

[(1, 2478660), (2, 1239330), (3, 826220), (4, 619665), (5, 495732), (6, 413110), (10, 247866), (12, 206555), (15, 165244), (20, 123933), (30, 82622), (60, 41311), (109, 22740), (218, 11370), (327, 7580), (379, 6540), (436, 5685), (545, 4548), (654, 3790), (758, 3270), (1090, 2274), (1137, 2180), (1308, 1895), (1516, 1635)]