81125560

素因数分解:

$2^3\times 5^1\times {\mathrm{2028139}}^1$

素因数の和:2028150

約数の個数: 16

約数和(自身を含む): 182532600

約数和(自身を除く): 101407040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2028139, 4056278, 8112556, 10140695, 16225112, 20281390, 40562780, 81125560]

約数ペア:

[(1, 81125560), (2, 40562780), (4, 20281390), (5, 16225112), (8, 10140695), (10, 8112556), (20, 4056278), (40, 2028139)]