128703152

素因数分解:

$2^4\times {\mathrm{991}}^1\times {\mathrm{8117}}^1$

素因数の和:9116

約数の個数: 20

約数和(自身を含む): 249644736

約数和(自身を除く): 120941584

約数列:

[1, 2, 4, 8, 16, 991, 1982, 3964, 7928, 8117, 15856, 16234, 32468, 64936, 129872, 8043947, 16087894, 32175788, 64351576, 128703152]

約数ペア:

[(1, 128703152), (2, 64351576), (4, 32175788), (8, 16087894), (16, 8043947), (991, 129872), (1982, 64936), (3964, 32468), (7928, 16234), (8117, 15856)]