81435748

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{2237}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 150393600

約数和(自身を除く): 68957852

約数列:

[1, 2, 4, 19, 38, 76, 479, 958, 1916, 2237, 4474, 8948, 9101, 18202, 36404, 42503, 85006, 170012, 1071523, 2143046, 4286092, 20358937, 40717874, 81435748]

約数ペア:

[(1, 81435748), (2, 40717874), (4, 20358937), (19, 4286092), (38, 2143046), (76, 1071523), (479, 170012), (958, 85006), (1916, 42503), (2237, 36404), (4474, 18202), (8948, 9101)]