1972025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 2731968

約数和(自身を除く): 759943

約数列:

[1, 5, 11, 25, 55, 71, 101, 275, 355, 505, 781, 1111, 1775, 2525, 3905, 5555, 7171, 19525, 27775, 35855, 78881, 179275, 394405, 1972025]

約数ペア:

[(1, 1972025), (5, 394405), (11, 179275), (25, 78881), (55, 35855), (71, 27775), (101, 19525), (275, 7171), (355, 5555), (505, 3905), (781, 2525), (1111, 1775)]