129529168

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197453}}^1$

素因数の和:197502

約数の個数: 20

約数和(自身を含む): 257085108

約数和(自身を除く): 127555940

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 197453, 394906, 789812, 1579624, 3159248, 8095573, 16191146, 32382292, 64764584, 129529168]

約数ペア:

[(1, 129529168), (2, 64764584), (4, 32382292), (8, 16191146), (16, 8095573), (41, 3159248), (82, 1579624), (164, 789812), (328, 394906), (656, 197453)]