11128420

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1291}}^1$

素因数の和:1731

約数の個数: 24

約数和(自身を含む): 23442048

約数和(自身を除く): 12313628

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1291, 1724, 2155, 2582, 4310, 5164, 6455, 8620, 12910, 25820, 556421, 1112842, 2225684, 2782105, 5564210, 11128420]

約数ペア:

[(1, 11128420), (2, 5564210), (4, 2782105), (5, 2225684), (10, 1112842), (20, 556421), (431, 25820), (862, 12910), (1291, 8620), (1724, 6455), (2155, 5164), (2582, 4310)]