20200185

素因数分解:

$3^4\times 5^1\times {\mathrm{49877}}^1$

素因数の和:49894

約数の個数: 20

約数和(自身を含む): 36211428

約数和(自身を除く): 16011243

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49877, 149631, 249385, 448893, 748155, 1346679, 2244465, 4040037, 6733395, 20200185]

約数ペア:

[(1, 20200185), (3, 6733395), (5, 4040037), (9, 2244465), (15, 1346679), (27, 748155), (45, 448893), (81, 249385), (135, 149631), (405, 49877)]