127978565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2521}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 183036672

約数和(自身を除く): 55058107

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 2521, 3905, 4615, 10153, 12605, 27731, 32773, 50765, 138655, 163865, 178991, 360503, 894955, 1802515, 1968901, 2326883, 9844505, 11634415, 25595713, 127978565]

約数ペア:

[(1, 127978565), (5, 25595713), (11, 11634415), (13, 9844505), (55, 2326883), (65, 1968901), (71, 1802515), (143, 894955), (355, 360503), (715, 178991), (781, 163865), (923, 138655), (2521, 50765), (3905, 32773), (4615, 27731), (10153, 12605)]