4208840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2447}}^1$

素因数の和:2501

約数の個数: 32

約数和(自身を含む): 9694080

約数和(自身を除く): 5485240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2447, 4894, 9788, 12235, 19576, 24470, 48940, 97880, 105221, 210442, 420884, 526105, 841768, 1052210, 2104420, 4208840]

約数ペア:

[(1, 4208840), (2, 2104420), (4, 1052210), (5, 841768), (8, 526105), (10, 420884), (20, 210442), (40, 105221), (43, 97880), (86, 48940), (172, 24470), (215, 19576), (344, 12235), (430, 9788), (860, 4894), (1720, 2447)]