20857534144

素因数分解:

$2^6\times {\mathrm{409}}^1\times {\mathrm{796819}}^1$

素因数の和:797240

約数の個数: 28

約数和(自身を含む): 41490417400

約数和(自身を除く): 20632883256

約数列:

[1, 2, 4, 8, 16, 32, 64, 409, 818, 1636, 3272, 6544, 13088, 26176, 796819, 1593638, 3187276, 6374552, 12749104, 25498208, 50996416, 325898971, 651797942, 1303595884, 2607191768, 5214383536, 10428767072, 20857534144]

約数ペア:

[(1, 20857534144), (2, 10428767072), (4, 5214383536), (8, 2607191768), (16, 1303595884), (32, 651797942), (64, 325898971), (409, 50996416), (818, 25498208), (1636, 12749104), (3272, 6374552), (6544, 3187276), (13088, 1593638), (26176, 796819)]