20090939477

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{283}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 24149905920

約数和(自身を除く): 4058966443

約数列:

[1, 7, 49, 73, 89, 223, 283, 511, 623, 1561, 1981, 3577, 4361, 6497, 10927, 13867, 16279, 19847, 20659, 25187, 45479, 63109, 113953, 138929, 144613, 176309, 318353, 441763, 797671, 972503, 1012291, 1234163, 1448831, 1838651, 3092341, 4606957, 5616701, 10141817, 12870557, 32248699, 39316907, 70992719, 90093899, 225740893, 275218349, 410019173, 2870134211, 20090939477]

約数ペア:

[(1, 20090939477), (7, 2870134211), (49, 410019173), (73, 275218349), (89, 225740893), (223, 90093899), (283, 70992719), (511, 39316907), (623, 32248699), (1561, 12870557), (1981, 10141817), (3577, 5616701), (4361, 4606957), (6497, 3092341), (10927, 1838651), (13867, 1448831), (16279, 1234163), (19847, 1012291), (20659, 972503), (25187, 797671), (45479, 441763), (63109, 318353), (113953, 176309), (138929, 144613)]