20790505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{521}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 26158464

約数和(自身を除く): 5367959

約数列:

[1, 5, 23, 115, 347, 521, 1735, 2605, 7981, 11983, 39905, 59915, 180787, 903935, 4158101, 20790505]

約数ペア:

[(1, 20790505), (5, 4158101), (23, 903935), (115, 180787), (347, 59915), (521, 39905), (1735, 11983), (2605, 7981)]