20158715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{479}}^1$

素因数の和:946

約数の個数: 16

約数和(自身を含む): 25574400

約数和(自身を除く): 5415685

約数列:

[1, 5, 19, 95, 443, 479, 2215, 2395, 8417, 9101, 42085, 45505, 212197, 1060985, 4031743, 20158715]

約数ペア:

[(1, 20158715), (5, 4031743), (19, 1060985), (95, 212197), (443, 45505), (479, 42085), (2215, 9101), (2395, 8417)]