180897020

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{22783}}^1$

素因数の和:23189

約数の個数: 24

約数和(自身を含む): 380857344

約数和(自身を除く): 199960324

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 22783, 45566, 91132, 113915, 227830, 455660, 9044851, 18089702, 36179404, 45224255, 90448510, 180897020]

約数ペア:

[(1, 180897020), (2, 90448510), (4, 45224255), (5, 36179404), (10, 18089702), (20, 9044851), (397, 455660), (794, 227830), (1588, 113915), (1985, 91132), (3970, 45566), (7940, 22783)]