28039000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{2549}}^1$

素因数の和:2581

約数の個数: 64

約数和(自身を含む): 71604000

約数和(自身を除く): 43565000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 2200, 2549, 2750, 5098, 5500, 10196, 11000, 12745, 20392, 25490, 28039, 50980, 56078, 63725, 101960, 112156, 127450, 140195, 224312, 254900, 280390, 318625, 509800, 560780, 637250, 700975, 1121560, 1274500, 1401950, 2549000, 2803900, 3504875, 5607800, 7009750, 14019500, 28039000]

約数ペア:

[(1, 28039000), (2, 14019500), (4, 7009750), (5, 5607800), (8, 3504875), (10, 2803900), (11, 2549000), (20, 1401950), (22, 1274500), (25, 1121560), (40, 700975), (44, 637250), (50, 560780), (55, 509800), (88, 318625), (100, 280390), (110, 254900), (125, 224312), (200, 140195), (220, 127450), (250, 112156), (275, 101960), (440, 63725), (500, 56078), (550, 50980), (1000, 28039), (1100, 25490), (1375, 20392), (2200, 12745), (2549, 11000), (2750, 10196), (5098, 5500)]