20975370800

素因数分解:

$2^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{412901}}^1$

素因数の和:413046

約数の個数: 60

約数和(自身を含む): 50790249216

約数和(自身を除く): 29814878416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 127, 200, 254, 400, 508, 635, 1016, 1270, 2032, 2540, 3175, 5080, 6350, 10160, 12700, 25400, 50800, 412901, 825802, 1651604, 2064505, 3303208, 4129010, 6606416, 8258020, 10322525, 16516040, 20645050, 33032080, 41290100, 52438427, 82580200, 104876854, 165160400, 209753708, 262192135, 419507416, 524384270, 839014832, 1048768540, 1310960675, 2097537080, 2621921350, 4195074160, 5243842700, 10487685400, 20975370800]

約数ペア:

[(1, 20975370800), (2, 10487685400), (4, 5243842700), (5, 4195074160), (8, 2621921350), (10, 2097537080), (16, 1310960675), (20, 1048768540), (25, 839014832), (40, 524384270), (50, 419507416), (80, 262192135), (100, 209753708), (127, 165160400), (200, 104876854), (254, 82580200), (400, 52438427), (508, 41290100), (635, 33032080), (1016, 20645050), (1270, 16516040), (2032, 10322525), (2540, 8258020), (3175, 6606416), (5080, 4129010), (6350, 3303208), (10160, 2064505), (12700, 1651604), (25400, 825802), (50800, 412901)]