20308145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28403}}^1$

素因数の和:28432

約数の個数: 16

約数和(自身を含む): 28631232

約数和(自身を除く): 8323087

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28403, 142015, 312433, 369239, 1562165, 1846195, 4061629, 20308145]

約数ペア:

[(1, 20308145), (5, 4061629), (11, 1846195), (13, 1562165), (55, 369239), (65, 312433), (143, 142015), (715, 28403)]