25072780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{65981}}^1$

素因数の和:66009

約数の個数: 24

約数和(自身を含む): 55424880

約数和(自身を除く): 30352100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 65981, 131962, 263924, 329905, 659810, 1253639, 1319620, 2507278, 5014556, 6268195, 12536390, 25072780]

約数ペア:

[(1, 25072780), (2, 12536390), (4, 6268195), (5, 5014556), (10, 2507278), (19, 1319620), (20, 1253639), (38, 659810), (76, 329905), (95, 263924), (190, 131962), (380, 65981)]