55378840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2927}}^1$

素因数の和:2992

約数の個数: 64

約数和(自身を含む): 139138560

約数和(自身を除く): 83759720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 2927, 3784, 4730, 5854, 9460, 11708, 14635, 18920, 23416, 29270, 32197, 58540, 64394, 117080, 125861, 128788, 160985, 251722, 257576, 321970, 503444, 629305, 643940, 1006888, 1258610, 1287880, 1384471, 2517220, 2768942, 5034440, 5537884, 6922355, 11075768, 13844710, 27689420, 55378840]

約数ペア:

[(1, 55378840), (2, 27689420), (4, 13844710), (5, 11075768), (8, 6922355), (10, 5537884), (11, 5034440), (20, 2768942), (22, 2517220), (40, 1384471), (43, 1287880), (44, 1258610), (55, 1006888), (86, 643940), (88, 629305), (110, 503444), (172, 321970), (215, 257576), (220, 251722), (344, 160985), (430, 128788), (440, 125861), (473, 117080), (860, 64394), (946, 58540), (1720, 32197), (1892, 29270), (2365, 23416), (2927, 18920), (3784, 14635), (4730, 11708), (5854, 9460)]