25661140

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1559}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 53988480

約数和(自身を除く): 28327340

約数列:

[1, 2, 4, 5, 10, 20, 823, 1559, 1646, 3118, 3292, 4115, 6236, 7795, 8230, 15590, 16460, 31180, 1283057, 2566114, 5132228, 6415285, 12830570, 25661140]

約数ペア:

[(1, 25661140), (2, 12830570), (4, 6415285), (5, 5132228), (10, 2566114), (20, 1283057), (823, 31180), (1559, 16460), (1646, 15590), (3118, 8230), (3292, 7795), (4115, 6236)]