20208128

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{1361}}^1$

素因数の和:1408

約数の個数: 40

約数和(自身を含む): 41799780

約数和(自身を除く): 21591652

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 512, 928, 1361, 1856, 2722, 3712, 5444, 7424, 10888, 14848, 21776, 39469, 43552, 78938, 87104, 157876, 174208, 315752, 348416, 631504, 696832, 1263008, 2526016, 5052032, 10104064, 20208128]

約数ペア:

[(1, 20208128), (2, 10104064), (4, 5052032), (8, 2526016), (16, 1263008), (29, 696832), (32, 631504), (58, 348416), (64, 315752), (116, 174208), (128, 157876), (232, 87104), (256, 78938), (464, 43552), (512, 39469), (928, 21776), (1361, 14848), (1856, 10888), (2722, 7424), (3712, 5444)]