206840720

素因数分解:

$2^4\times 5^1\times {\mathrm{2585509}}^1$

素因数の和:2585522

約数の個数: 20

約数和(自身を含む): 480904860

約数和(自身を除く): 274064140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2585509, 5171018, 10342036, 12927545, 20684072, 25855090, 41368144, 51710180, 103420360, 206840720]

約数ペア:

[(1, 206840720), (2, 103420360), (4, 51710180), (5, 41368144), (8, 25855090), (10, 20684072), (16, 12927545), (20, 10342036), (40, 5171018), (80, 2585509)]