638049255

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{324707}}^1$

素因数の和:324846

約数の個数: 16

約数和(自身を含む): 1028674944

約数和(自身を除く): 390625689

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 324707, 974121, 1623535, 4870605, 42536617, 127609851, 212683085, 638049255]

約数ペア:

[(1, 638049255), (3, 212683085), (5, 127609851), (15, 42536617), (131, 4870605), (393, 1623535), (655, 974121), (1965, 324707)]