17979520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2193

約数の個数: 64

約数和(自身を含む): 46310040

約数和(自身を除く): 28330520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 2161, 4160, 4322, 8320, 8644, 10805, 17288, 21610, 28093, 34576, 43220, 56186, 69152, 86440, 112372, 138304, 140465, 172880, 224744, 276608, 280930, 345760, 449488, 561860, 691520, 898976, 1123720, 1383040, 1797952, 2247440, 3595904, 4494880, 8989760, 17979520]

約数ペア:

[(1, 17979520), (2, 8989760), (4, 4494880), (5, 3595904), (8, 2247440), (10, 1797952), (13, 1383040), (16, 1123720), (20, 898976), (26, 691520), (32, 561860), (40, 449488), (52, 345760), (64, 280930), (65, 276608), (80, 224744), (104, 172880), (128, 140465), (130, 138304), (160, 112372), (208, 86440), (260, 69152), (320, 56186), (416, 43220), (520, 34576), (640, 28093), (832, 21610), (1040, 17288), (1664, 10805), (2080, 8644), (2161, 8320), (4160, 4322)]