199964000

素因数分解:

$2^5\times 5^3\times {\mathrm{49991}}^1$

素因数の和:50016

約数の個数: 48

約数和(自身を含む): 491321376

約数和(自身を除く): 291357376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 49991, 99982, 199964, 249955, 399928, 499910, 799856, 999820, 1249775, 1599712, 1999640, 2499550, 3999280, 4999100, 6248875, 7998560, 9998200, 12497750, 19996400, 24995500, 39992800, 49991000, 99982000, 199964000]

約数ペア:

[(1, 199964000), (2, 99982000), (4, 49991000), (5, 39992800), (8, 24995500), (10, 19996400), (16, 12497750), (20, 9998200), (25, 7998560), (32, 6248875), (40, 4999100), (50, 3999280), (80, 2499550), (100, 1999640), (125, 1599712), (160, 1249775), (200, 999820), (250, 799856), (400, 499910), (500, 399928), (800, 249955), (1000, 199964), (2000, 99982), (4000, 49991)]