128662989

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 227770368

約数和(自身を除く): 99107379

約数列:

[1, 3, 7, 13, 21, 23, 31, 39, 69, 91, 93, 161, 217, 273, 299, 403, 483, 651, 661, 713, 897, 1209, 1983, 2093, 2139, 2821, 4627, 4991, 6279, 8463, 8593, 9269, 13881, 14973, 15203, 20491, 25779, 27807, 45609, 60151, 61473, 64883, 106421, 143437, 180453, 194649, 197639, 266383, 319263, 430311, 471293, 592917, 799149, 1383473, 1413879, 1864681, 3299051, 4150419, 5594043, 6126809, 9897153, 18380427, 42887663, 128662989]

約数ペア:

[(1, 128662989), (3, 42887663), (7, 18380427), (13, 9897153), (21, 6126809), (23, 5594043), (31, 4150419), (39, 3299051), (69, 1864681), (91, 1413879), (93, 1383473), (161, 799149), (217, 592917), (273, 471293), (299, 430311), (403, 319263), (483, 266383), (651, 197639), (661, 194649), (713, 180453), (897, 143437), (1209, 106421), (1983, 64883), (2093, 61473), (2139, 60151), (2821, 45609), (4627, 27807), (4991, 25779), (6279, 20491), (8463, 15203), (8593, 14973), (9269, 13881)]