288565940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109869}}^1$

素因数の和:1109891

約数の個数: 24

約数和(自身を含む): 652603560

約数和(自身を除く): 364037620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1109869, 2219738, 4439476, 5549345, 11098690, 14428297, 22197380, 28856594, 57713188, 72141485, 144282970, 288565940]

約数ペア:

[(1, 288565940), (2, 144282970), (4, 72141485), (5, 57713188), (10, 28856594), (13, 22197380), (20, 14428297), (26, 11098690), (52, 5549345), (65, 4439476), (130, 2219738), (260, 1109869)]