20163368428

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1\times {\mathrm{9397}}^1$

素因数の和:9994

約数の個数: 48

約数和(自身を含む): 40639959360

約数和(自身を除く): 20476590932

約数列:

[1, 2, 4, 7, 14, 28, 197, 389, 394, 778, 788, 1379, 1556, 2723, 2758, 5446, 5516, 9397, 10892, 18794, 37588, 65779, 76633, 131558, 153266, 263116, 306532, 536431, 1072862, 1851209, 2145724, 3655433, 3702418, 7310866, 7404836, 12958463, 14621732, 25588031, 25916926, 51176062, 51833852, 102352124, 720120301, 1440240602, 2880481204, 5040842107, 10081684214, 20163368428]

約数ペア:

[(1, 20163368428), (2, 10081684214), (4, 5040842107), (7, 2880481204), (14, 1440240602), (28, 720120301), (197, 102352124), (389, 51833852), (394, 51176062), (778, 25916926), (788, 25588031), (1379, 14621732), (1556, 12958463), (2723, 7404836), (2758, 7310866), (5446, 3702418), (5516, 3655433), (9397, 2145724), (10892, 1851209), (18794, 1072862), (37588, 536431), (65779, 306532), (76633, 263116), (131558, 153266)]