20409869935

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2963}}^1\times {\mathrm{15139}}^1$

素因数の和:18127

約数の個数: 32

約数和(自身を含む): 30155973120

約数和(自身を除く): 9746103185

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 2963, 14815, 15139, 20741, 38519, 75695, 103705, 105973, 192595, 196807, 269633, 529865, 984035, 1348165, 1377649, 6888245, 44856857, 224284285, 313997999, 583139141, 1569989995, 2915695705, 4081973987, 20409869935]

約数ペア:

[(1, 20409869935), (5, 4081973987), (7, 2915695705), (13, 1569989995), (35, 583139141), (65, 313997999), (91, 224284285), (455, 44856857), (2963, 6888245), (14815, 1377649), (15139, 1348165), (20741, 984035), (38519, 529865), (75695, 269633), (103705, 196807), (105973, 192595)]