80457560

素因数分解:

$2^3\times 5^1\times {\mathrm{2011439}}^1$

素因数の和:2011450

約数の個数: 16

約数和(自身を含む): 181029600

約数和(自身を除く): 100572040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2011439, 4022878, 8045756, 10057195, 16091512, 20114390, 40228780, 80457560]

約数ペア:

[(1, 80457560), (2, 40228780), (4, 20114390), (5, 16091512), (8, 10057195), (10, 8045756), (20, 4022878), (40, 2011439)]