20857588705

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{422689}}^1$

素因数の和:422904

約数の個数: 16

約数和(自身を含む): 25564291200

約数和(自身を除く): 4706702495

約数列:

[1, 5, 71, 139, 355, 695, 9869, 49345, 422689, 2113445, 30010919, 58753771, 150054595, 293768855, 4171517741, 20857588705]

約数ペア:

[(1, 20857588705), (5, 4171517741), (71, 293768855), (139, 150054595), (355, 58753771), (695, 30010919), (9869, 2113445), (49345, 422689)]