12405320

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3011}}^1$

素因数の和:3125

約数の個数: 32

約数和(自身を含む): 28192320

約数和(自身を除く): 15787000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3011, 4120, 6022, 12044, 15055, 24088, 30110, 60220, 120440, 310133, 620266, 1240532, 1550665, 2481064, 3101330, 6202660, 12405320]

約数ペア:

[(1, 12405320), (2, 6202660), (4, 3101330), (5, 2481064), (8, 1550665), (10, 1240532), (20, 620266), (40, 310133), (103, 120440), (206, 60220), (412, 30110), (515, 24088), (824, 15055), (1030, 12044), (2060, 6022), (3011, 4120)]