86998220

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{4363}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 182921424

約数和(自身を除く): 95923204

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4363, 4985, 8726, 9970, 17452, 19940, 21815, 43630, 87260, 4349911, 8699822, 17399644, 21749555, 43499110, 86998220]

約数ペア:

[(1, 86998220), (2, 43499110), (4, 21749555), (5, 17399644), (10, 8699822), (20, 4349911), (997, 87260), (1994, 43630), (3988, 21815), (4363, 19940), (4985, 17452), (8726, 9970)]