28257515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{39521}}^1$

素因数の和:39550

約数の個数: 16

約数和(自身を含む): 39838176

約数和(自身を除く): 11580661

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 39521, 197605, 434731, 513773, 2173655, 2568865, 5651503, 28257515]

約数ペア:

[(1, 28257515), (5, 5651503), (11, 2568865), (13, 2173655), (55, 513773), (65, 434731), (143, 197605), (715, 39521)]