256388636

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{398119}}^1$

素因数の和:398153

約数の個数: 24

約数和(自身を含む): 535073280

約数和(自身を除く): 278684644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 398119, 796238, 1592476, 2786833, 5573666, 9156737, 11147332, 18313474, 36626948, 64097159, 128194318, 256388636]

約数ペア:

[(1, 256388636), (2, 128194318), (4, 64097159), (7, 36626948), (14, 18313474), (23, 11147332), (28, 9156737), (46, 5573666), (92, 2786833), (161, 1592476), (322, 796238), (644, 398119)]