209217815

素因数分解:

$5^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:1066

約数の個数: 16

約数和(自身を含む): 253281600

約数和(自身を除く): 44063785

約数列:

[1, 5, 263, 389, 409, 1315, 1945, 2045, 102307, 107567, 159101, 511535, 537835, 795505, 41843563, 209217815]

約数ペア:

[(1, 209217815), (5, 41843563), (263, 795505), (389, 537835), (409, 511535), (1315, 159101), (1945, 107567), (2045, 102307)]