19494500

素因数分解:

$2^2\times 5^3\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 43051008

約数和(自身を除く): 23556508

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 127, 250, 254, 307, 500, 508, 614, 635, 1228, 1270, 1535, 2540, 3070, 3175, 6140, 6350, 7675, 12700, 15350, 15875, 30700, 31750, 38375, 38989, 63500, 76750, 77978, 153500, 155956, 194945, 389890, 779780, 974725, 1949450, 3898900, 4873625, 9747250, 19494500]

約数ペア:

[(1, 19494500), (2, 9747250), (4, 4873625), (5, 3898900), (10, 1949450), (20, 974725), (25, 779780), (50, 389890), (100, 194945), (125, 155956), (127, 153500), (250, 77978), (254, 76750), (307, 63500), (500, 38989), (508, 38375), (614, 31750), (635, 30700), (1228, 15875), (1270, 15350), (1535, 12700), (2540, 7675), (3070, 6350), (3175, 6140)]