789045220

素因数分解:

$2^2\times 5^1\times {\mathrm{1931}}^1\times {\mathrm{20431}}^1$

素因数の和:22371

約数の個数: 24

約数和(自身を含む): 1657934208

約数和(自身を除く): 868888988

約数列:

[1, 2, 4, 5, 10, 20, 1931, 3862, 7724, 9655, 19310, 20431, 38620, 40862, 81724, 102155, 204310, 408620, 39452261, 78904522, 157809044, 197261305, 394522610, 789045220]

約数ペア:

[(1, 789045220), (2, 394522610), (4, 197261305), (5, 157809044), (10, 78904522), (20, 39452261), (1931, 408620), (3862, 204310), (7724, 102155), (9655, 81724), (19310, 40862), (20431, 38620)]