131618120

素因数分解:

$2^3\times 5^1\times {\mathrm{3290453}}^1$

素因数の和:3290464

約数の個数: 16

約数和(自身を含む): 296140860

約数和(自身を除く): 164522740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3290453, 6580906, 13161812, 16452265, 26323624, 32904530, 65809060, 131618120]

約数ペア:

[(1, 131618120), (2, 65809060), (4, 32904530), (5, 26323624), (8, 16452265), (10, 13161812), (20, 6580906), (40, 3290453)]