28256930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217361}}^1$

素因数の和:217381

約数の個数: 16

約数和(自身を含む): 54775224

約数和(自身を除く): 26518294

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217361, 434722, 1086805, 2173610, 2825693, 5651386, 14128465, 28256930]

約数ペア:

[(1, 28256930), (2, 14128465), (5, 5651386), (10, 2825693), (13, 2173610), (26, 1086805), (65, 434722), (130, 217361)]