1028000

素因数分解:

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

素因数の和:282

約数の個数: 48

約数和(自身を含む): 2535624

約数和(自身を除く): 1507624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 257, 400, 500, 514, 800, 1000, 1028, 1285, 2000, 2056, 2570, 4000, 4112, 5140, 6425, 8224, 10280, 12850, 20560, 25700, 32125, 41120, 51400, 64250, 102800, 128500, 205600, 257000, 514000, 1028000]

約数ペア:

[(1, 1028000), (2, 514000), (4, 257000), (5, 205600), (8, 128500), (10, 102800), (16, 64250), (20, 51400), (25, 41120), (32, 32125), (40, 25700), (50, 20560), (80, 12850), (100, 10280), (125, 8224), (160, 6425), (200, 5140), (250, 4112), (257, 4000), (400, 2570), (500, 2056), (514, 2000), (800, 1285), (1000, 1028)]