25778155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20873}}^1$

素因数の和:20910

約数の個数: 16

約数和(自身を含む): 35068320

約数和(自身を除く): 9290165

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 20873, 104365, 271349, 396587, 1356745, 1982935, 5155631, 25778155]

約数ペア:

[(1, 25778155), (5, 5155631), (13, 1982935), (19, 1356745), (65, 396587), (95, 271349), (247, 104365), (1235, 20873)]