128764000

素因数分解:

$2^5\times 5^3\times {\mathrm{32191}}^1$

素因数の和:32216

約数の個数: 48

約数和(自身を含む): 316382976

約数和(自身を除く): 187618976

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, 32191, 64382, 128764, 160955, 257528, 321910, 515056, 643820, 804775, 1030112, 1287640, 1609550, 2575280, 3219100, 4023875, 5150560, 6438200, 8047750, 12876400, 16095500, 25752800, 32191000, 64382000, 128764000]

約数ペア:

[(1, 128764000), (2, 64382000), (4, 32191000), (5, 25752800), (8, 16095500), (10, 12876400), (16, 8047750), (20, 6438200), (25, 5150560), (32, 4023875), (40, 3219100), (50, 2575280), (80, 1609550), (100, 1287640), (125, 1030112), (160, 804775), (200, 643820), (250, 515056), (400, 321910), (500, 257528), (800, 160955), (1000, 128764), (2000, 64382), (4000, 32191)]