8278000

素因数分解:

$2^4\times 5^3\times {\mathrm{4139}}^1$

素因数の和:4162

約数の個数: 40

約数和(自身を含む): 20021040

約数和(自身を除く): 11743040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 4139, 8278, 16556, 20695, 33112, 41390, 66224, 82780, 103475, 165560, 206950, 331120, 413900, 517375, 827800, 1034750, 1655600, 2069500, 4139000, 8278000]

約数ペア:

[(1, 8278000), (2, 4139000), (4, 2069500), (5, 1655600), (8, 1034750), (10, 827800), (16, 517375), (20, 413900), (25, 331120), (40, 206950), (50, 165560), (80, 103475), (100, 82780), (125, 66224), (200, 41390), (250, 33112), (400, 20695), (500, 16556), (1000, 8278), (2000, 4139)]