81119792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389999}}^1$

素因数の和:390020

約数の個数: 20

約数和(自身を含む): 169260000

約数和(自身を除く): 88140208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389999, 779998, 1559996, 3119992, 5069987, 6239984, 10139974, 20279948, 40559896, 81119792]

約数ペア:

[(1, 81119792), (2, 40559896), (4, 20279948), (8, 10139974), (13, 6239984), (16, 5069987), (26, 3119992), (52, 1559996), (104, 779998), (208, 389999)]