20269968008

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{3940507}}^1$

素因数の和:3941156

約数の個数: 16

約数和(自身を含む): 38065307280

約数和(自身を除く): 17795339272

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 5144, 3940507, 7881014, 15762028, 31524056, 2533746001, 5067492002, 10134984004, 20269968008]

約数ペア:

[(1, 20269968008), (2, 10134984004), (4, 5067492002), (8, 2533746001), (643, 31524056), (1286, 15762028), (2572, 7881014), (5144, 3940507)]