20809156765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3448079}}^1$

素因数の和:3448172

約数の個数: 16

約数和(自身を含む): 26812270080

約数和(自身を除く): 6003113315

約数列:

[1, 5, 17, 71, 85, 355, 1207, 6035, 3448079, 17240395, 58617343, 244813609, 293086715, 1224068045, 4161831353, 20809156765]

約数ペア:

[(1, 20809156765), (5, 4161831353), (17, 1224068045), (71, 293086715), (85, 244813609), (355, 58617343), (1207, 17240395), (6035, 3448079)]