861149097985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{549937}}^1$

素因数の和:550425

約数の個数: 32

約数和(自身を含む): 1146053193984

約数和(自身を除く): 284904095999

約数列:

[1, 5, 11, 55, 71, 355, 401, 781, 2005, 3905, 4411, 22055, 28471, 142355, 313181, 549937, 1565905, 2749685, 6049307, 30246535, 39045527, 195227635, 220524737, 429500797, 1102623685, 2147503985, 2425772107, 12128860535, 15657256327, 78286281635, 172229819597, 861149097985]

約数ペア:

[(1, 861149097985), (5, 172229819597), (11, 78286281635), (55, 15657256327), (71, 12128860535), (355, 2425772107), (401, 2147503985), (781, 1102623685), (2005, 429500797), (3905, 220524737), (4411, 195227635), (22055, 39045527), (28471, 30246535), (142355, 6049307), (313181, 2749685), (549937, 1565905)]