2578312120

素因数分解:

$2^3\times 5^1\times {\mathrm{64457803}}^1$

素因数の和:64457814

約数の個数: 16

約数和(自身を含む): 5801202360

約数和(自身を除く): 3222890240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 64457803, 128915606, 257831212, 322289015, 515662424, 644578030, 1289156060, 2578312120]

約数ペア:

[(1, 2578312120), (2, 1289156060), (4, 644578030), (5, 515662424), (8, 322289015), (10, 257831212), (20, 128915606), (40, 64457803)]