19837720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70849}}^1$

素因数の和:70867

約数の個数: 32

約数和(自身を含む): 51012000

約数和(自身を除く): 31174280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70849, 141698, 283396, 354245, 495943, 566792, 708490, 991886, 1416980, 1983772, 2479715, 2833960, 3967544, 4959430, 9918860, 19837720]

約数ペア:

[(1, 19837720), (2, 9918860), (4, 4959430), (5, 3967544), (7, 2833960), (8, 2479715), (10, 1983772), (14, 1416980), (20, 991886), (28, 708490), (35, 566792), (40, 495943), (56, 354245), (70, 283396), (140, 141698), (280, 70849)]