20803600

素因数分解:

$2^4\times 5^2\times {\mathrm{52009}}^1$

素因数の和:52027

約数の個数: 30

約数和(自身を含む): 49981610

約数和(自身を除く): 29178010

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52009, 104018, 208036, 260045, 416072, 520090, 832144, 1040180, 1300225, 2080360, 2600450, 4160720, 5200900, 10401800, 20803600]

約数ペア:

[(1, 20803600), (2, 10401800), (4, 5200900), (5, 4160720), (8, 2600450), (10, 2080360), (16, 1300225), (20, 1040180), (25, 832144), (40, 520090), (50, 416072), (80, 260045), (100, 208036), (200, 104018), (400, 52009)]