520017880

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{26053}}^1$

素因数の和:26563

約数の個数: 32

約数和(自身を含む): 1172430000

約数和(自身を除く): 652412120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 19960, 26053, 52106, 104212, 130265, 208424, 260530, 521060, 1042120, 13000447, 26000894, 52001788, 65002235, 104003576, 130004470, 260008940, 520017880]

約数ペア:

[(1, 520017880), (2, 260008940), (4, 130004470), (5, 104003576), (8, 65002235), (10, 52001788), (20, 26000894), (40, 13000447), (499, 1042120), (998, 521060), (1996, 260530), (2495, 208424), (3992, 130265), (4990, 104212), (9980, 52106), (19960, 26053)]