80677640

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7127}}^1$

素因数の和:7421

約数の個数: 32

約数和(自身を含む): 182191680

約数和(自身を除く): 101514040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 7127, 11320, 14254, 28508, 35635, 57016, 71270, 142540, 285080, 2016941, 4033882, 8067764, 10084705, 16135528, 20169410, 40338820, 80677640]

約数ペア:

[(1, 80677640), (2, 40338820), (4, 20169410), (5, 16135528), (8, 10084705), (10, 8067764), (20, 4033882), (40, 2016941), (283, 285080), (566, 142540), (1132, 71270), (1415, 57016), (2264, 35635), (2830, 28508), (5660, 14254), (7127, 11320)]