128795860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{279991}}^1$

素因数の和:280023

約数の個数: 24

約数和(自身を含む): 282231936

約数和(自身を除く): 153436076

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 279991, 559982, 1119964, 1399955, 2799910, 5599820, 6439793, 12879586, 25759172, 32198965, 64397930, 128795860]

約数ペア:

[(1, 128795860), (2, 64397930), (4, 32198965), (5, 25759172), (10, 12879586), (20, 6439793), (23, 5599820), (46, 2799910), (92, 1399955), (115, 1119964), (230, 559982), (460, 279991)]