28034800

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:770

約数の個数: 60

約数和(自身を含む): 68077240

約数和(自身を除く): 40042440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 545, 643, 872, 1090, 1286, 1744, 2180, 2572, 2725, 3215, 4360, 5144, 5450, 6430, 8720, 10288, 10900, 12860, 16075, 21800, 25720, 32150, 43600, 51440, 64300, 70087, 128600, 140174, 257200, 280348, 350435, 560696, 700870, 1121392, 1401740, 1752175, 2803480, 3504350, 5606960, 7008700, 14017400, 28034800]

約数ペア:

[(1, 28034800), (2, 14017400), (4, 7008700), (5, 5606960), (8, 3504350), (10, 2803480), (16, 1752175), (20, 1401740), (25, 1121392), (40, 700870), (50, 560696), (80, 350435), (100, 280348), (109, 257200), (200, 140174), (218, 128600), (400, 70087), (436, 64300), (545, 51440), (643, 43600), (872, 32150), (1090, 25720), (1286, 21800), (1744, 16075), (2180, 12860), (2572, 10900), (2725, 10288), (3215, 8720), (4360, 6430), (5144, 5450)]