20180991728

素因数分解:

$2^4\times {\mathrm{563}}^1\times {\mathrm{2240341}}^1$

素因数の和:2240912

約数の個数: 20

約数和(自身を含む): 39170139528

約数和(自身を除く): 18989147800

約数列:

[1, 2, 4, 8, 16, 563, 1126, 2252, 4504, 9008, 2240341, 4480682, 8961364, 17922728, 35845456, 1261311983, 2522623966, 5045247932, 10090495864, 20180991728]

約数ペア:

[(1, 20180991728), (2, 10090495864), (4, 5045247932), (8, 2522623966), (16, 1261311983), (563, 35845456), (1126, 17922728), (2252, 8961364), (4504, 4480682), (9008, 2240341)]