81495988

素因数分解:

$2^2\times 7^1\times {\mathrm{1549}}^1\times {\mathrm{1879}}^1$

素因数の和:3439

約数の個数: 24

約数和(自身を含む): 163184000

約数和(自身を除く): 81688012

約数列:

[1, 2, 4, 7, 14, 28, 1549, 1879, 3098, 3758, 6196, 7516, 10843, 13153, 21686, 26306, 43372, 52612, 2910571, 5821142, 11642284, 20373997, 40747994, 81495988]

約数ペア:

[(1, 81495988), (2, 40747994), (4, 20373997), (7, 11642284), (14, 5821142), (28, 2910571), (1549, 52612), (1879, 43372), (3098, 26306), (3758, 21686), (6196, 13153), (7516, 10843)]