20087665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7187}}^1$

素因数の和:7248

約数の個数: 16

約数和(自身を含む): 26566848

約数和(自身を除く): 6479183

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7187, 35935, 93431, 309041, 467155, 1545205, 4017533, 20087665]

約数ペア:

[(1, 20087665), (5, 4017533), (13, 1545205), (43, 467155), (65, 309041), (215, 93431), (559, 35935), (2795, 7187)]