20672320

素因数分解:

$2^6\times 5^1\times {\mathrm{64601}}^1$

素因数の和:64618

約数の個数: 28

約数和(自身を含む): 49226724

約数和(自身を除く): 28554404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64601, 129202, 258404, 323005, 516808, 646010, 1033616, 1292020, 2067232, 2584040, 4134464, 5168080, 10336160, 20672320]

約数ペア:

[(1, 20672320), (2, 10336160), (4, 5168080), (5, 4134464), (8, 2584040), (10, 2067232), (16, 1292020), (20, 1033616), (32, 646010), (40, 516808), (64, 323005), (80, 258404), (160, 129202), (320, 64601)]