260021680

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29819}}^1$

素因数の和:29941

約数の個数: 40

約数和(自身を含む): 610117200

約数和(自身を除く): 350095520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 29819, 59638, 119276, 149095, 238552, 298190, 477104, 596380, 1192760, 2385520, 3250271, 6500542, 13001084, 16251355, 26002168, 32502710, 52004336, 65005420, 130010840, 260021680]

約数ペア:

[(1, 260021680), (2, 130010840), (4, 65005420), (5, 52004336), (8, 32502710), (10, 26002168), (16, 16251355), (20, 13001084), (40, 6500542), (80, 3250271), (109, 2385520), (218, 1192760), (436, 596380), (545, 477104), (872, 298190), (1090, 238552), (1744, 149095), (2180, 119276), (4360, 59638), (8720, 29819)]