2840720

素因数分解:

$2^4\times 5^1\times {\mathrm{35509}}^1$

素因数の和:35522

約数の個数: 20

約数和(自身を含む): 6604860

約数和(自身を除く): 3764140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 35509, 71018, 142036, 177545, 284072, 355090, 568144, 710180, 1420360, 2840720]

約数ペア:

[(1, 2840720), (2, 1420360), (4, 710180), (5, 568144), (8, 355090), (10, 284072), (16, 177545), (20, 142036), (40, 71018), (80, 35509)]