18864140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1783}}^1$

素因数の和:1838

約数の個数: 36

約数和(自身を含む): 41435184

約数和(自身を除く): 22571044

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1783, 2116, 2645, 3566, 5290, 7132, 8915, 10580, 17830, 35660, 41009, 82018, 164036, 205045, 410090, 820180, 943207, 1886414, 3772828, 4716035, 9432070, 18864140]

約数ペア:

[(1, 18864140), (2, 9432070), (4, 4716035), (5, 3772828), (10, 1886414), (20, 943207), (23, 820180), (46, 410090), (92, 205045), (115, 164036), (230, 82018), (460, 41009), (529, 35660), (1058, 17830), (1783, 10580), (2116, 8915), (2645, 7132), (3566, 5290)]