13750040

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1987}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 31132080

約数和(自身を除く): 17382040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 1987, 3460, 3974, 6920, 7948, 9935, 15896, 19870, 39740, 79480, 343751, 687502, 1375004, 1718755, 2750008, 3437510, 6875020, 13750040]

約数ペア:

[(1, 13750040), (2, 6875020), (4, 3437510), (5, 2750008), (8, 1718755), (10, 1375004), (20, 687502), (40, 343751), (173, 79480), (346, 39740), (692, 19870), (865, 15896), (1384, 9935), (1730, 7948), (1987, 6920), (3460, 3974)]