20454005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28607}}^1$

素因数の和:28636

約数の個数: 16

約数和(自身を含む): 28836864

約数和(自身を除く): 8382859

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28607, 143035, 314677, 371891, 1573385, 1859455, 4090801, 20454005]

約数ペア:

[(1, 20454005), (5, 4090801), (11, 1859455), (13, 1573385), (55, 371891), (65, 314677), (143, 143035), (715, 28607)]