39289460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{280639}}^1$

素因数の和:280655

約数の個数: 24

約数和(自身を含む): 94295040

約数和(自身を除く): 55005580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 280639, 561278, 1122556, 1403195, 1964473, 2806390, 3928946, 5612780, 7857892, 9822365, 19644730, 39289460]

約数ペア:

[(1, 39289460), (2, 19644730), (4, 9822365), (5, 7857892), (7, 5612780), (10, 3928946), (14, 2806390), (20, 1964473), (28, 1403195), (35, 1122556), (70, 561278), (140, 280639)]