81355395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 147847680

約数和(自身を除く): 66492285

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 61, 137, 165, 177, 183, 295, 305, 411, 649, 671, 685, 885, 915, 1507, 1947, 2013, 2055, 3245, 3355, 3599, 4521, 7535, 8083, 8357, 9735, 10065, 10797, 17995, 22605, 24249, 25071, 39589, 40415, 41785, 53985, 88913, 91927, 118767, 121245, 125355, 197945, 266739, 275781, 444565, 459635, 493063, 593835, 1333695, 1378905, 1479189, 2465315, 5423693, 7395945, 16271079, 27118465, 81355395]

約数ペア:

[(1, 81355395), (3, 27118465), (5, 16271079), (11, 7395945), (15, 5423693), (33, 2465315), (55, 1479189), (59, 1378905), (61, 1333695), (137, 593835), (165, 493063), (177, 459635), (183, 444565), (295, 275781), (305, 266739), (411, 197945), (649, 125355), (671, 121245), (685, 118767), (885, 91927), (915, 88913), (1507, 53985), (1947, 41785), (2013, 40415), (2055, 39589), (3245, 25071), (3355, 24249), (3599, 22605), (4521, 17995), (7535, 10797), (8083, 10065), (8357, 9735)]