28267070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217439}}^1$

素因数の和:217459

約数の個数: 16

約数和(自身を含む): 54794880

約数和(自身を除く): 26527810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217439, 434878, 1087195, 2174390, 2826707, 5653414, 14133535, 28267070]

約数ペア:

[(1, 28267070), (2, 14133535), (5, 5653414), (10, 2826707), (13, 2174390), (26, 1087195), (65, 434878), (130, 217439)]