66060040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 153648000

約数和(自身を除く): 87587960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 193, 199, 215, 344, 386, 398, 430, 772, 796, 860, 965, 995, 1544, 1592, 1720, 1930, 1990, 3860, 3980, 7720, 7960, 8299, 8557, 16598, 17114, 33196, 34228, 38407, 41495, 42785, 66392, 68456, 76814, 82990, 85570, 153628, 165980, 171140, 192035, 307256, 331960, 342280, 384070, 768140, 1536280, 1651501, 3303002, 6606004, 8257505, 13212008, 16515010, 33030020, 66060040]

約数ペア:

[(1, 66060040), (2, 33030020), (4, 16515010), (5, 13212008), (8, 8257505), (10, 6606004), (20, 3303002), (40, 1651501), (43, 1536280), (86, 768140), (172, 384070), (193, 342280), (199, 331960), (215, 307256), (344, 192035), (386, 171140), (398, 165980), (430, 153628), (772, 85570), (796, 82990), (860, 76814), (965, 68456), (995, 66392), (1544, 42785), (1592, 41495), (1720, 38407), (1930, 34228), (1990, 33196), (3860, 17114), (3980, 16598), (7720, 8557), (7960, 8299)]