20677720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73849}}^1$

素因数の和:73867

約数の個数: 32

約数和(自身を含む): 53172000

約数和(自身を除く): 32494280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73849, 147698, 295396, 369245, 516943, 590792, 738490, 1033886, 1476980, 2067772, 2584715, 2953960, 4135544, 5169430, 10338860, 20677720]

約数ペア:

[(1, 20677720), (2, 10338860), (4, 5169430), (5, 4135544), (7, 2953960), (8, 2584715), (10, 2067772), (14, 1476980), (20, 1033886), (28, 738490), (35, 590792), (40, 516943), (56, 369245), (70, 295396), (140, 147698), (280, 73849)]