205295715

素因数分解:

$3^4\times 5^1\times {\mathrm{506903}}^1$

素因数の和:506920

約数の個数: 20

約数和(自身を含む): 368012304

約数和(自身を除く): 162716589

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 506903, 1520709, 2534515, 4562127, 7603545, 13686381, 22810635, 41059143, 68431905, 205295715]

約数ペア:

[(1, 205295715), (3, 68431905), (5, 41059143), (9, 22810635), (15, 13686381), (27, 7603545), (45, 4562127), (81, 2534515), (135, 1520709), (405, 506903)]