277728080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{70849}}^1$

素因数の和:70876

約数の個数: 60

約数和(自身を含む): 751151700

約数和(自身を除く): 473423620

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 70849, 141698, 283396, 354245, 495943, 566792, 708490, 991886, 1133584, 1416980, 1983772, 2479715, 2833960, 3471601, 3967544, 4959430, 5667920, 6943202, 7935088, 9918860, 13886404, 17358005, 19837720, 27772808, 34716010, 39675440, 55545616, 69432020, 138864040, 277728080]

約数ペア:

[(1, 277728080), (2, 138864040), (4, 69432020), (5, 55545616), (7, 39675440), (8, 34716010), (10, 27772808), (14, 19837720), (16, 17358005), (20, 13886404), (28, 9918860), (35, 7935088), (40, 6943202), (49, 5667920), (56, 4959430), (70, 3967544), (80, 3471601), (98, 2833960), (112, 2479715), (140, 1983772), (196, 1416980), (245, 1133584), (280, 991886), (392, 708490), (490, 566792), (560, 495943), (784, 354245), (980, 283396), (1960, 141698), (3920, 70849)]