20135025

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:946

約数の個数: 36

約数和(自身を含む): 36439260

約数和(自身を除く): 16304235

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 821, 981, 1635, 2463, 2725, 4105, 4905, 7389, 8175, 12315, 20525, 24525, 36945, 61575, 89489, 184725, 268467, 447445, 805401, 1342335, 2237225, 4027005, 6711675, 20135025]

約数ペア:

[(1, 20135025), (3, 6711675), (5, 4027005), (9, 2237225), (15, 1342335), (25, 805401), (45, 447445), (75, 268467), (109, 184725), (225, 89489), (327, 61575), (545, 36945), (821, 24525), (981, 20525), (1635, 12315), (2463, 8175), (2725, 7389), (4105, 4905)]