129544880

素因数分解:

$2^4\times 5^1\times {\mathrm{1619311}}^1$

素因数の和:1619324

約数の個数: 20

約数和(自身を含む): 301192032

約数和(自身を除く): 171647152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1619311, 3238622, 6477244, 8096555, 12954488, 16193110, 25908976, 32386220, 64772440, 129544880]

約数ペア:

[(1, 129544880), (2, 64772440), (4, 32386220), (5, 25908976), (8, 16193110), (10, 12954488), (16, 8096555), (20, 6477244), (40, 3238622), (80, 1619311)]