56161780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 120556800

約数和(自身を除く): 64395020

約数列:

[1, 2, 4, 5, 10, 20, 103, 137, 199, 206, 274, 398, 412, 515, 548, 685, 796, 995, 1030, 1370, 1990, 2060, 2740, 3980, 14111, 20497, 27263, 28222, 40994, 54526, 56444, 70555, 81988, 102485, 109052, 136315, 141110, 204970, 272630, 282220, 409940, 545260, 2808089, 5616178, 11232356, 14040445, 28080890, 56161780]

約数ペア:

[(1, 56161780), (2, 28080890), (4, 14040445), (5, 11232356), (10, 5616178), (20, 2808089), (103, 545260), (137, 409940), (199, 282220), (206, 272630), (274, 204970), (398, 141110), (412, 136315), (515, 109052), (548, 102485), (685, 81988), (796, 70555), (995, 56444), (1030, 54526), (1370, 40994), (1990, 28222), (2060, 27263), (2740, 20497), (3980, 14111)]