280278128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{31337}}^1$

素因数の和:31401

約数の個数: 40

約数和(自身を含む): 598430448

約数和(自身を除く): 318152320

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 31337, 62674, 125348, 250696, 407381, 501392, 814762, 1347491, 1629524, 2694982, 3259048, 5389964, 6518096, 10779928, 17517383, 21559856, 35034766, 70069532, 140139064, 280278128]

約数ペア:

[(1, 280278128), (2, 140139064), (4, 70069532), (8, 35034766), (13, 21559856), (16, 17517383), (26, 10779928), (43, 6518096), (52, 5389964), (86, 3259048), (104, 2694982), (172, 1629524), (208, 1347491), (344, 814762), (559, 501392), (688, 407381), (1118, 250696), (2236, 125348), (4472, 62674), (8944, 31337)]