20187560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21943}}^1$

素因数の和:21977

約数の個数: 32

約数和(自身を含む): 47399040

約数和(自身を除く): 27211480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21943, 43886, 87772, 109715, 175544, 219430, 438860, 504689, 877720, 1009378, 2018756, 2523445, 4037512, 5046890, 10093780, 20187560]

約数ペア:

[(1, 20187560), (2, 10093780), (4, 5046890), (5, 4037512), (8, 2523445), (10, 2018756), (20, 1009378), (23, 877720), (40, 504689), (46, 438860), (92, 219430), (115, 175544), (184, 109715), (230, 87772), (460, 43886), (920, 21943)]