1640642728

素因数分解:

$2^3\times {\mathrm{983}}^1\times {\mathrm{208627}}^1$

素因数の和:209616

約数の個数: 16

約数和(自身を含む): 3079349280

約数和(自身を除く): 1438706552

約数列:

[1, 2, 4, 8, 983, 1966, 3932, 7864, 208627, 417254, 834508, 1669016, 205080341, 410160682, 820321364, 1640642728]

約数ペア:

[(1, 1640642728), (2, 820321364), (4, 410160682), (8, 205080341), (983, 1669016), (1966, 834508), (3932, 417254), (7864, 208627)]