2564452816

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{321199}}^1$

素因数の和:321706

約数の個数: 20

約数和(自身を含む): 4978600000

約数和(自身を除く): 2414147184

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 3992, 7984, 321199, 642398, 1284796, 2569592, 5139184, 160278301, 320556602, 641113204, 1282226408, 2564452816]

約数ペア:

[(1, 2564452816), (2, 1282226408), (4, 641113204), (8, 320556602), (16, 160278301), (499, 5139184), (998, 2569592), (1996, 1284796), (3992, 642398), (7984, 321199)]