514000

素因数分解:

$2^4\times 5^3\times {\mathrm{257}}^1$

素因数の和:280

約数の個数: 40

約数和(自身を含む): 1247688

約数和(自身を除く): 733688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 257, 400, 500, 514, 1000, 1028, 1285, 2000, 2056, 2570, 4112, 5140, 6425, 10280, 12850, 20560, 25700, 32125, 51400, 64250, 102800, 128500, 257000, 514000]

約数ペア:

[(1, 514000), (2, 257000), (4, 128500), (5, 102800), (8, 64250), (10, 51400), (16, 32125), (20, 25700), (25, 20560), (40, 12850), (50, 10280), (80, 6425), (100, 5140), (125, 4112), (200, 2570), (250, 2056), (257, 2000), (400, 1285), (500, 1028), (514, 1000)]