18416560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10009}}^1$

素因数の和:10045

約数の個数: 40

約数和(自身を含む): 44684640

約数和(自身を除く): 26268080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10009, 20018, 40036, 50045, 80072, 100090, 160144, 200180, 230207, 400360, 460414, 800720, 920828, 1151035, 1841656, 2302070, 3683312, 4604140, 9208280, 18416560]

約数ペア:

[(1, 18416560), (2, 9208280), (4, 4604140), (5, 3683312), (8, 2302070), (10, 1841656), (16, 1151035), (20, 920828), (23, 800720), (40, 460414), (46, 400360), (80, 230207), (92, 200180), (115, 160144), (184, 100090), (230, 80072), (368, 50045), (460, 40036), (920, 20018), (1840, 10009)]