203480720

素因数分解:

$2^4\times 5^1\times {\mathrm{2543509}}^1$

素因数の和:2543522

約数の個数: 20

約数和(自身を含む): 473092860

約数和(自身を除く): 269612140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2543509, 5087018, 10174036, 12717545, 20348072, 25435090, 40696144, 50870180, 101740360, 203480720]

約数ペア:

[(1, 203480720), (2, 101740360), (4, 50870180), (5, 40696144), (8, 25435090), (10, 20348072), (16, 12717545), (20, 10174036), (40, 5087018), (80, 2543509)]