128873168

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{196453}}^1$

素因数の和:196502

約数の個数: 20

約数和(自身を含む): 255783108

約数和(自身を除く): 126909940

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 196453, 392906, 785812, 1571624, 3143248, 8054573, 16109146, 32218292, 64436584, 128873168]

約数ペア:

[(1, 128873168), (2, 64436584), (4, 32218292), (8, 16109146), (16, 8054573), (41, 3143248), (82, 1571624), (164, 785812), (328, 392906), (656, 196453)]