20288996065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{106787}}^1$

素因数の和:106921

約数の個数: 32

約数和(自身を含む): 27269383680

約数和(自身を除く): 6980387615

約数列:

[1, 5, 13, 37, 65, 79, 185, 395, 481, 1027, 2405, 2923, 5135, 14615, 37999, 106787, 189995, 533935, 1388231, 3951119, 6941155, 8436173, 19755595, 42180865, 51364547, 109670249, 256822735, 312138401, 548351245, 1560692005, 4057799213, 20288996065]

約数ペア:

[(1, 20288996065), (5, 4057799213), (13, 1560692005), (37, 548351245), (65, 312138401), (79, 256822735), (185, 109670249), (395, 51364547), (481, 42180865), (1027, 19755595), (2405, 8436173), (2923, 6941155), (5135, 3951119), (14615, 1388231), (37999, 533935), (106787, 189995)]