1239980255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{634261}}^1$

素因数の和:634306

約数の個数: 16

約数和(自身を含む): 1644007104

約数和(自身を除く): 404026849

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 634261, 3171305, 10782437, 14588003, 53912185, 72940015, 247996051, 1239980255]

約数ペア:

[(1, 1239980255), (5, 247996051), (17, 72940015), (23, 53912185), (85, 14588003), (115, 10782437), (391, 3171305), (1955, 634261)]