209215565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{68483}}^1$

素因数の和:68548

約数の個数: 16

約数和(自身を含む): 276127488

約数和(自身を除く): 66911923

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 68483, 342415, 890279, 3218701, 4451395, 16093505, 41843113, 209215565]

約数ペア:

[(1, 209215565), (5, 41843113), (13, 16093505), (47, 4451395), (65, 3218701), (235, 890279), (611, 342415), (3055, 68483)]