138488420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7789}}^1$

素因数の和:7932

約数の個数: 48

約数和(自身を含む): 335032320

約数和(自身を除く): 196543900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 7789, 8890, 15578, 17780, 31156, 38945, 54523, 77890, 109046, 155780, 218092, 272615, 545230, 989203, 1090460, 1978406, 3956812, 4946015, 6924421, 9892030, 13848842, 19784060, 27697684, 34622105, 69244210, 138488420]

約数ペア:

[(1, 138488420), (2, 69244210), (4, 34622105), (5, 27697684), (7, 19784060), (10, 13848842), (14, 9892030), (20, 6924421), (28, 4946015), (35, 3956812), (70, 1978406), (127, 1090460), (140, 989203), (254, 545230), (508, 272615), (635, 218092), (889, 155780), (1270, 109046), (1778, 77890), (2540, 54523), (3556, 38945), (4445, 31156), (7789, 17780), (8890, 15578)]