20831560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22643}}^1$

素因数の和:22677

約数の個数: 32

約数和(自身を含む): 48911040

約数和(自身を除く): 28079480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22643, 45286, 90572, 113215, 181144, 226430, 452860, 520789, 905720, 1041578, 2083156, 2603945, 4166312, 5207890, 10415780, 20831560]

約数ペア:

[(1, 20831560), (2, 10415780), (4, 5207890), (5, 4166312), (8, 2603945), (10, 2083156), (20, 1041578), (23, 905720), (40, 520789), (46, 452860), (92, 226430), (115, 181144), (184, 113215), (230, 90572), (460, 45286), (920, 22643)]