3974000

素因数分解:

$2^4\times 5^3\times {\mathrm{1987}}^1$

素因数の和:2010

約数の個数: 40

約数和(自身を含む): 9613968

約数和(自身を除く): 5639968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1987, 2000, 3974, 7948, 9935, 15896, 19870, 31792, 39740, 49675, 79480, 99350, 158960, 198700, 248375, 397400, 496750, 794800, 993500, 1987000, 3974000]

約数ペア:

[(1, 3974000), (2, 1987000), (4, 993500), (5, 794800), (8, 496750), (10, 397400), (16, 248375), (20, 198700), (25, 158960), (40, 99350), (50, 79480), (80, 49675), (100, 39740), (125, 31792), (200, 19870), (250, 15896), (400, 9935), (500, 7948), (1000, 3974), (1987, 2000)]