20509330

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{3877}}^1$

素因数の和:3930

約数の個数: 24

約数和(自身を含む): 38601612

約数和(自身を除く): 18092282

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 529, 1058, 2645, 3877, 5290, 7754, 19385, 38770, 89171, 178342, 445855, 891710, 2050933, 4101866, 10254665, 20509330]

約数ペア:

[(1, 20509330), (2, 10254665), (5, 4101866), (10, 2050933), (23, 891710), (46, 445855), (115, 178342), (230, 89171), (529, 38770), (1058, 19385), (2645, 7754), (3877, 5290)]