201811520

素因数分解:

$2^6\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1093}}^1$

素因数の和:1687

約数の個数: 56

約数和(自身を含む): 481836984

約数和(自身を除く): 280025464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 577, 1093, 1154, 2186, 2308, 2885, 4372, 4616, 5465, 5770, 8744, 9232, 10930, 11540, 17488, 18464, 21860, 23080, 34976, 36928, 43720, 46160, 69952, 87440, 92320, 174880, 184640, 349760, 630661, 1261322, 2522644, 3153305, 5045288, 6306610, 10090576, 12613220, 20181152, 25226440, 40362304, 50452880, 100905760, 201811520]

約数ペア:

[(1, 201811520), (2, 100905760), (4, 50452880), (5, 40362304), (8, 25226440), (10, 20181152), (16, 12613220), (20, 10090576), (32, 6306610), (40, 5045288), (64, 3153305), (80, 2522644), (160, 1261322), (320, 630661), (577, 349760), (1093, 184640), (1154, 174880), (2186, 92320), (2308, 87440), (2885, 69952), (4372, 46160), (4616, 43720), (5465, 36928), (5770, 34976), (8744, 23080), (9232, 21860), (10930, 18464), (11540, 17488)]