9974000

素因数分解:

$2^4\times 5^3\times {\mathrm{4987}}^1$

素因数の和:5010

約数の個数: 40

約数和(自身を含む): 24121968

約数和(自身を除く): 14147968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 4987, 9974, 19948, 24935, 39896, 49870, 79792, 99740, 124675, 199480, 249350, 398960, 498700, 623375, 997400, 1246750, 1994800, 2493500, 4987000, 9974000]

約数ペア:

[(1, 9974000), (2, 4987000), (4, 2493500), (5, 1994800), (8, 1246750), (10, 997400), (16, 623375), (20, 498700), (25, 398960), (40, 249350), (50, 199480), (80, 124675), (100, 99740), (125, 79792), (200, 49870), (250, 39896), (400, 24935), (500, 19948), (1000, 9974), (2000, 4987)]