4728280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2749}}^1$

素因数の和:2803

約数の個数: 32

約数和(自身を含む): 10890000

約数和(自身を除く): 6161720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2749, 5498, 10996, 13745, 21992, 27490, 54980, 109960, 118207, 236414, 472828, 591035, 945656, 1182070, 2364140, 4728280]

約数ペア:

[(1, 4728280), (2, 2364140), (4, 1182070), (5, 945656), (8, 591035), (10, 472828), (20, 236414), (40, 118207), (43, 109960), (86, 54980), (172, 27490), (215, 21992), (344, 13745), (430, 10996), (860, 5498), (1720, 2749)]