131380975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{743}}^1$

素因数の和:1407

約数の個数: 24

約数和(自身を含む): 178238592

約数和(自身を除く): 46857617

約数列:

[1, 5, 11, 25, 55, 275, 643, 743, 3215, 3715, 7073, 8173, 16075, 18575, 35365, 40865, 176825, 204325, 477749, 2388745, 5255239, 11943725, 26276195, 131380975]

約数ペア:

[(1, 131380975), (5, 26276195), (11, 11943725), (25, 5255239), (55, 2388745), (275, 477749), (643, 204325), (743, 176825), (3215, 40865), (3715, 35365), (7073, 18575), (8173, 16075)]