645205120555

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{1993}}^1\times {\mathrm{5261}}^1$

素因数の和:7687

約数の個数: 32

約数和(自身を含む): 801789378048

約数和(自身を除く): 156584257493

約数列:

[1, 5, 31, 155, 397, 1985, 1993, 5261, 9965, 12307, 26305, 61535, 61783, 163091, 308915, 791221, 815455, 2088617, 3956105, 10443085, 10485173, 24527851, 52425865, 64747127, 122639255, 323735635, 325040363, 1625201815, 4162613681, 20813068405, 129041024111, 645205120555]

約数ペア:

[(1, 645205120555), (5, 129041024111), (31, 20813068405), (155, 4162613681), (397, 1625201815), (1985, 325040363), (1993, 323735635), (5261, 122639255), (9965, 64747127), (12307, 52425865), (26305, 24527851), (61535, 10485173), (61783, 10443085), (163091, 3956105), (308915, 2088617), (791221, 815455)]