19771780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7433}}^1$

素因数の和:7468

約数の個数: 48

約数和(自身を含む): 49956480

約数和(自身を除く): 30184700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7433, 14866, 29732, 37165, 52031, 74330, 104062, 141227, 148660, 208124, 260155, 282454, 520310, 564908, 706135, 988589, 1040620, 1412270, 1977178, 2824540, 3954356, 4942945, 9885890, 19771780]

約数ペア:

[(1, 19771780), (2, 9885890), (4, 4942945), (5, 3954356), (7, 2824540), (10, 1977178), (14, 1412270), (19, 1040620), (20, 988589), (28, 706135), (35, 564908), (38, 520310), (70, 282454), (76, 260155), (95, 208124), (133, 148660), (140, 141227), (190, 104062), (266, 74330), (380, 52031), (532, 37165), (665, 29732), (1330, 14866), (2660, 7433)]