27499000

素因数分解:

$2^3\times 5^3\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 65201760

約数和(自身を除く): 37702760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 107, 125, 200, 214, 250, 257, 428, 500, 514, 535, 856, 1000, 1028, 1070, 1285, 2056, 2140, 2570, 2675, 4280, 5140, 5350, 6425, 10280, 10700, 12850, 13375, 21400, 25700, 26750, 27499, 32125, 51400, 53500, 54998, 64250, 107000, 109996, 128500, 137495, 219992, 257000, 274990, 549980, 687475, 1099960, 1374950, 2749900, 3437375, 5499800, 6874750, 13749500, 27499000]

約数ペア:

[(1, 27499000), (2, 13749500), (4, 6874750), (5, 5499800), (8, 3437375), (10, 2749900), (20, 1374950), (25, 1099960), (40, 687475), (50, 549980), (100, 274990), (107, 257000), (125, 219992), (200, 137495), (214, 128500), (250, 109996), (257, 107000), (428, 64250), (500, 54998), (514, 53500), (535, 51400), (856, 32125), (1000, 27499), (1028, 26750), (1070, 25700), (1285, 21400), (2056, 13375), (2140, 12850), (2570, 10700), (2675, 10280), (4280, 6425), (5140, 5350)]