71617168

素因数分解:

$2^4\times 7^1\times {\mathrm{639439}}^1$

素因数の和:639454

約数の個数: 20

約数和(自身を含む): 158581120

約数和(自身を除く): 86963952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 639439, 1278878, 2557756, 4476073, 5115512, 8952146, 10231024, 17904292, 35808584, 71617168]

約数ペア:

[(1, 71617168), (2, 35808584), (4, 17904292), (7, 10231024), (8, 8952146), (14, 5115512), (16, 4476073), (28, 2557756), (56, 1278878), (112, 639439)]