208031440

素因数分解:

$2^4\times 5^1\times {\mathrm{2600393}}^1$

素因数の和:2600406

約数の個数: 20

約数和(自身を含む): 483673284

約数和(自身を除く): 275641844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600393, 5200786, 10401572, 13001965, 20803144, 26003930, 41606288, 52007860, 104015720, 208031440]

約数ペア:

[(1, 208031440), (2, 104015720), (4, 52007860), (5, 41606288), (8, 26003930), (10, 20803144), (16, 13001965), (20, 10401572), (40, 5200786), (80, 2600393)]