39156740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 94348800

約数和(自身を除く): 55192060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 719, 778, 1438, 1556, 1945, 2723, 2876, 3595, 3890, 5033, 5446, 7190, 7780, 10066, 10892, 13615, 14380, 20132, 25165, 27230, 50330, 54460, 100660, 279691, 559382, 1118764, 1398455, 1957837, 2796910, 3915674, 5593820, 7831348, 9789185, 19578370, 39156740]

約数ペア:

[(1, 39156740), (2, 19578370), (4, 9789185), (5, 7831348), (7, 5593820), (10, 3915674), (14, 2796910), (20, 1957837), (28, 1398455), (35, 1118764), (70, 559382), (140, 279691), (389, 100660), (719, 54460), (778, 50330), (1438, 27230), (1556, 25165), (1945, 20132), (2723, 14380), (2876, 13615), (3595, 10892), (3890, 10066), (5033, 7780), (5446, 7190)]