51125440

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1025

約数の個数: 56

約数和(自身を含む): 122511312

約数和(自身を除く): 71385872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 811, 985, 1576, 1622, 1970, 3152, 3244, 3940, 4055, 6304, 6488, 7880, 8110, 12608, 12976, 15760, 16220, 25952, 31520, 32440, 51904, 63040, 64880, 129760, 159767, 259520, 319534, 639068, 798835, 1278136, 1597670, 2556272, 3195340, 5112544, 6390680, 10225088, 12781360, 25562720, 51125440]

約数ペア:

[(1, 51125440), (2, 25562720), (4, 12781360), (5, 10225088), (8, 6390680), (10, 5112544), (16, 3195340), (20, 2556272), (32, 1597670), (40, 1278136), (64, 798835), (80, 639068), (160, 319534), (197, 259520), (320, 159767), (394, 129760), (788, 64880), (811, 63040), (985, 51904), (1576, 32440), (1622, 31520), (1970, 25952), (3152, 16220), (3244, 15760), (3940, 12976), (4055, 12608), (6304, 8110), (6488, 7880)]