78738940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{562421}}^1$

素因数の和:562437

約数の個数: 24

約数和(自身を含む): 188973792

約数和(自身を除く): 110234852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 562421, 1124842, 2249684, 2812105, 3936947, 5624210, 7873894, 11248420, 15747788, 19684735, 39369470, 78738940]

約数ペア:

[(1, 78738940), (2, 39369470), (4, 19684735), (5, 15747788), (7, 11248420), (10, 7873894), (14, 5624210), (20, 3936947), (28, 2812105), (35, 2249684), (70, 1124842), (140, 562421)]