1231280

素因数分解:

$2^4\times 5^1\times {\mathrm{15391}}^1$

素因数の和:15404

約数の個数: 20

約数和(自身を含む): 2862912

約数和(自身を除く): 1631632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15391, 30782, 61564, 76955, 123128, 153910, 246256, 307820, 615640, 1231280]

約数ペア:

[(1, 1231280), (2, 615640), (4, 307820), (5, 246256), (8, 153910), (10, 123128), (16, 76955), (20, 61564), (40, 30782), (80, 15391)]