138555760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247421}}^1$

素因数の和:247441

約数の個数: 40

約数和(自身を含む): 368163936

約数和(自身を除く): 229608176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247421, 494842, 989684, 1237105, 1731947, 1979368, 2474210, 3463894, 3958736, 4948420, 6927788, 8659735, 9896840, 13855576, 17319470, 19793680, 27711152, 34638940, 69277880, 138555760]

約数ペア:

[(1, 138555760), (2, 69277880), (4, 34638940), (5, 27711152), (7, 19793680), (8, 17319470), (10, 13855576), (14, 9896840), (16, 8659735), (20, 6927788), (28, 4948420), (35, 3958736), (40, 3463894), (56, 2474210), (70, 1979368), (80, 1731947), (112, 1237105), (140, 989684), (280, 494842), (560, 247421)]