138976460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{992689}}^1$

素因数の和:992705

約数の個数: 24

約数和(自身を含む): 333543840

約数和(自身を除く): 194567380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 992689, 1985378, 3970756, 4963445, 6948823, 9926890, 13897646, 19853780, 27795292, 34744115, 69488230, 138976460]

約数ペア:

[(1, 138976460), (2, 69488230), (4, 34744115), (5, 27795292), (7, 19853780), (10, 13897646), (14, 9926890), (20, 6948823), (28, 4963445), (35, 3970756), (70, 1985378), (140, 992689)]