19920425

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 28569600

約数和(自身を除く): 8649175

約数列:

[1, 5, 7, 25, 35, 89, 175, 445, 623, 1279, 2225, 3115, 6395, 8953, 15575, 31975, 44765, 113831, 223825, 569155, 796817, 2845775, 3984085, 19920425]

約数ペア:

[(1, 19920425), (5, 3984085), (7, 2845775), (25, 796817), (35, 569155), (89, 223825), (175, 113831), (445, 44765), (623, 31975), (1279, 15575), (2225, 8953), (3115, 6395)]