81322565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{4057}}^1$

素因数の和:4292

約数の個数: 16

約数和(自身を含む): 103235520

約数和(自身を除く): 21912955

約数列:

[1, 5, 19, 95, 211, 1055, 4009, 4057, 20045, 20285, 77083, 385415, 856027, 4280135, 16264513, 81322565]

約数ペア:

[(1, 81322565), (5, 16264513), (19, 4280135), (95, 856027), (211, 385415), (1055, 77083), (4009, 20285), (4057, 20045)]