289703660

素因数分解:

$2^2\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{6703}}^1$

素因数の和:8873

約数の個数: 24

約数和(自身を含む): 608750016

約数和(自身を除く): 319046356

約数列:

[1, 2, 4, 5, 10, 20, 2161, 4322, 6703, 8644, 10805, 13406, 21610, 26812, 33515, 43220, 67030, 134060, 14485183, 28970366, 57940732, 72425915, 144851830, 289703660]

約数ペア:

[(1, 289703660), (2, 144851830), (4, 72425915), (5, 57940732), (10, 28970366), (20, 14485183), (2161, 134060), (4322, 67030), (6703, 43220), (8644, 33515), (10805, 26812), (13406, 21610)]