20462320

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1867}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 47947824

約数和(自身を除く): 27485504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1867, 2192, 2740, 3734, 5480, 7468, 9335, 10960, 14936, 18670, 29872, 37340, 74680, 149360, 255779, 511558, 1023116, 1278895, 2046232, 2557790, 4092464, 5115580, 10231160, 20462320]

約数ペア:

[(1, 20462320), (2, 10231160), (4, 5115580), (5, 4092464), (8, 2557790), (10, 2046232), (16, 1278895), (20, 1023116), (40, 511558), (80, 255779), (137, 149360), (274, 74680), (548, 37340), (685, 29872), (1096, 18670), (1370, 14936), (1867, 10960), (2192, 9335), (2740, 7468), (3734, 5480)]