19688920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21401}}^1$

素因数の和:21435

約数の個数: 32

約数和(自身を含む): 46228320

約数和(自身を除く): 26539400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21401, 42802, 85604, 107005, 171208, 214010, 428020, 492223, 856040, 984446, 1968892, 2461115, 3937784, 4922230, 9844460, 19688920]

約数ペア:

[(1, 19688920), (2, 9844460), (4, 4922230), (5, 3937784), (8, 2461115), (10, 1968892), (20, 984446), (23, 856040), (40, 492223), (46, 428020), (92, 214010), (115, 171208), (184, 107005), (230, 85604), (460, 42802), (920, 21401)]