20565856780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{147341}}^1$

素因数の和:148354

約数の個数: 48

約数和(自身を含む): 49407898176

約数和(自身を除く): 28842041396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 997, 1994, 3988, 4985, 6979, 9970, 13958, 19940, 27916, 34895, 69790, 139580, 147341, 294682, 589364, 736705, 1031387, 1473410, 2062774, 2946820, 4125548, 5156935, 10313870, 20627740, 146898977, 293797954, 587595908, 734494885, 1028292839, 1468989770, 2056585678, 2937979540, 4113171356, 5141464195, 10282928390, 20565856780]

約数ペア:

[(1, 20565856780), (2, 10282928390), (4, 5141464195), (5, 4113171356), (7, 2937979540), (10, 2056585678), (14, 1468989770), (20, 1028292839), (28, 734494885), (35, 587595908), (70, 293797954), (140, 146898977), (997, 20627740), (1994, 10313870), (3988, 5156935), (4985, 4125548), (6979, 2946820), (9970, 2062774), (13958, 1473410), (19940, 1031387), (27916, 736705), (34895, 589364), (69790, 294682), (139580, 147341)]