209872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1030

約数の個数: 20

約数和(自身を含む): 438340

約数和(自身を除く): 228468

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1009, 2018, 4036, 8072, 13117, 16144, 26234, 52468, 104936, 209872]

約数ペア:

[(1, 209872), (2, 104936), (4, 52468), (8, 26234), (13, 16144), (16, 13117), (26, 8072), (52, 4036), (104, 2018), (208, 1009)]