8438945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 10735680

約数和(自身を除く): 2296735

約数列:

[1, 5, 19, 95, 211, 421, 1055, 2105, 4009, 7999, 20045, 39995, 88831, 444155, 1687789, 8438945]

約数ペア:

[(1, 8438945), (5, 1687789), (19, 444155), (95, 88831), (211, 39995), (421, 20045), (1055, 7999), (2105, 4009)]