1389991886

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{1307}}^1$

素因数の和:1568

約数の個数: 32

約数和(自身を含む): 2169815040

約数和(自身を除く): 779823154

約数列:

[1, 2, 53, 79, 106, 127, 158, 254, 1307, 2614, 4187, 6731, 8374, 10033, 13462, 20066, 69271, 103253, 138542, 165989, 206506, 331978, 531749, 1063498, 5472409, 8797417, 10944818, 13113131, 17594834, 26226262, 694995943, 1389991886]

約数ペア:

[(1, 1389991886), (2, 694995943), (53, 26226262), (79, 17594834), (106, 13113131), (127, 10944818), (158, 8797417), (254, 5472409), (1307, 1063498), (2614, 531749), (4187, 331978), (6731, 206506), (8374, 165989), (10033, 138542), (13462, 103253), (20066, 69271)]