20078445

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 14446995

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1109, 1207, 3327, 3621, 5545, 6035, 16635, 18105, 18853, 56559, 78739, 94265, 236217, 282795, 393695, 1181085, 1338563, 4015689, 6692815, 20078445]

約数ペア:

[(1, 20078445), (3, 6692815), (5, 4015689), (15, 1338563), (17, 1181085), (51, 393695), (71, 282795), (85, 236217), (213, 94265), (255, 78739), (355, 56559), (1065, 18853), (1109, 18105), (1207, 16635), (3327, 6035), (3621, 5545)]