28903040

素因数分解:

$2^7\times 5^1\times {\mathrm{45161}}^1$

素因数の和:45180

約数の個数: 32

約数和(自身を含む): 69097860

約数和(自身を除く): 40194820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 45161, 90322, 180644, 225805, 361288, 451610, 722576, 903220, 1445152, 1806440, 2890304, 3612880, 5780608, 7225760, 14451520, 28903040]

約数ペア:

[(1, 28903040), (2, 14451520), (4, 7225760), (5, 5780608), (8, 3612880), (10, 2890304), (16, 1806440), (20, 1445152), (32, 903220), (40, 722576), (64, 451610), (80, 361288), (128, 225805), (160, 180644), (320, 90322), (640, 45161)]