20386795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28513}}^1$

素因数の和:28542

約数の個数: 16

約数和(自身を含む): 28742112

約数和(自身を除く): 8355317

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28513, 142565, 313643, 370669, 1568215, 1853345, 4077359, 20386795]

約数ペア:

[(1, 20386795), (5, 4077359), (11, 1853345), (13, 1568215), (55, 370669), (65, 313643), (143, 142565), (715, 28513)]