12876400

素因数分解:

$2^4\times 5^2\times {\mathrm{32191}}^1$

素因数の和:32209

約数の個数: 30

約数和(自身を含む): 30936512

約数和(自身を除く): 18060112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32191, 64382, 128764, 160955, 257528, 321910, 515056, 643820, 804775, 1287640, 1609550, 2575280, 3219100, 6438200, 12876400]

約数ペア:

[(1, 12876400), (2, 6438200), (4, 3219100), (5, 2575280), (8, 1609550), (10, 1287640), (16, 804775), (20, 643820), (25, 515056), (40, 321910), (50, 257528), (80, 160955), (100, 128764), (200, 64382), (400, 32191)]