320207816

素因数分解:

$2^3\times {\mathrm{1999}}^1\times {\mathrm{20023}}^1$

素因数の和:22028

約数の個数: 16

約数和(自身を含む): 600720000

約数和(自身を除く): 280512184

約数列:

[1, 2, 4, 8, 1999, 3998, 7996, 15992, 20023, 40046, 80092, 160184, 40025977, 80051954, 160103908, 320207816]

約数ペア:

[(1, 320207816), (2, 160103908), (4, 80051954), (8, 40025977), (1999, 160184), (3998, 80092), (7996, 40046), (15992, 20023)]