81664975

素因数分解:

$5^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1063}}^1$

素因数の和:1519

約数の個数: 24

約数和(自身を含む): 116103680

約数和(自身を除く): 34438705

約数列:

[1, 5, 7, 25, 35, 175, 439, 1063, 2195, 3073, 5315, 7441, 10975, 15365, 26575, 37205, 76825, 186025, 466657, 2333285, 3266599, 11666425, 16332995, 81664975]

約数ペア:

[(1, 81664975), (5, 16332995), (7, 11666425), (25, 3266599), (35, 2333285), (175, 466657), (439, 186025), (1063, 76825), (2195, 37205), (3073, 26575), (5315, 15365), (7441, 10975)]