19734800

素因数分解:

$2^4\times 5^2\times {\mathrm{103}}^1\times {\mathrm{479}}^1$

素因数の和:600

約数の個数: 60

約数和(自身を含む): 47973120

約数和(自身を除く): 28238320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 103, 200, 206, 400, 412, 479, 515, 824, 958, 1030, 1648, 1916, 2060, 2395, 2575, 3832, 4120, 4790, 5150, 7664, 8240, 9580, 10300, 11975, 19160, 20600, 23950, 38320, 41200, 47900, 49337, 95800, 98674, 191600, 197348, 246685, 394696, 493370, 789392, 986740, 1233425, 1973480, 2466850, 3946960, 4933700, 9867400, 19734800]

約数ペア:

[(1, 19734800), (2, 9867400), (4, 4933700), (5, 3946960), (8, 2466850), (10, 1973480), (16, 1233425), (20, 986740), (25, 789392), (40, 493370), (50, 394696), (80, 246685), (100, 197348), (103, 191600), (200, 98674), (206, 95800), (400, 49337), (412, 47900), (479, 41200), (515, 38320), (824, 23950), (958, 20600), (1030, 19160), (1648, 11975), (1916, 10300), (2060, 9580), (2395, 8240), (2575, 7664), (3832, 5150), (4120, 4790)]