81978992

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{607}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 166465536

約数和(自身を除く): 84486544

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 367, 368, 607, 734, 1214, 1468, 2428, 2936, 4856, 5872, 8441, 9712, 13961, 16882, 27922, 33764, 55844, 67528, 111688, 135056, 222769, 223376, 445538, 891076, 1782152, 3564304, 5123687, 10247374, 20494748, 40989496, 81978992]

約数ペア:

[(1, 81978992), (2, 40989496), (4, 20494748), (8, 10247374), (16, 5123687), (23, 3564304), (46, 1782152), (92, 891076), (184, 445538), (367, 223376), (368, 222769), (607, 135056), (734, 111688), (1214, 67528), (1468, 55844), (2428, 33764), (2936, 27922), (4856, 16882), (5872, 13961), (8441, 9712)]