20407552004

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1133501}}^1$

素因数の和:1134155

約数の個数: 24

約数和(自身を含む): 40878616128

約数和(自身を除く): 20471064124

約数列:

[1, 2, 4, 7, 14, 28, 643, 1286, 2572, 4501, 9002, 18004, 1133501, 2267002, 4534004, 7934507, 15869014, 31738028, 728841143, 1457682286, 2915364572, 5101888001, 10203776002, 20407552004]

約数ペア:

[(1, 20407552004), (2, 10203776002), (4, 5101888001), (7, 2915364572), (14, 1457682286), (28, 728841143), (643, 31738028), (1286, 15869014), (2572, 7934507), (4501, 4534004), (9002, 2267002), (18004, 1133501)]