20512251650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{134639}}^1$

素因数の和:134939

約数の個数: 48

約数和(自身を含む): 41771790720

約数和(自身を除く): 21259539070

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 277, 550, 554, 1385, 2770, 3047, 6094, 6925, 13850, 15235, 30470, 76175, 134639, 152350, 269278, 673195, 1346390, 1481029, 2962058, 3365975, 6731950, 7405145, 14810290, 37025725, 37295003, 74051450, 74590006, 186475015, 372950030, 410245033, 820490066, 932375075, 1864750150, 2051225165, 4102450330, 10256125825, 20512251650]

約数ペア:

[(1, 20512251650), (2, 10256125825), (5, 4102450330), (10, 2051225165), (11, 1864750150), (22, 932375075), (25, 820490066), (50, 410245033), (55, 372950030), (110, 186475015), (275, 74590006), (277, 74051450), (550, 37295003), (554, 37025725), (1385, 14810290), (2770, 7405145), (3047, 6731950), (6094, 3365975), (6925, 2962058), (13850, 1481029), (15235, 1346390), (30470, 673195), (76175, 269278), (134639, 152350)]