256762395

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{997}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 457722720

約数和(自身を除く): 200960325

約数列:

[1, 3, 5, 9, 15, 45, 59, 97, 177, 291, 295, 485, 531, 873, 885, 997, 1455, 2655, 2991, 4365, 4985, 5723, 8973, 14955, 17169, 28615, 44865, 51507, 58823, 85845, 96709, 176469, 257535, 290127, 294115, 483545, 529407, 870381, 882345, 1450635, 2647035, 4351905, 5705831, 17117493, 28529155, 51352479, 85587465, 256762395]

約数ペア:

[(1, 256762395), (3, 85587465), (5, 51352479), (9, 28529155), (15, 17117493), (45, 5705831), (59, 4351905), (97, 2647035), (177, 1450635), (291, 882345), (295, 870381), (485, 529407), (531, 483545), (873, 294115), (885, 290127), (997, 257535), (1455, 176469), (2655, 96709), (2991, 85845), (4365, 58823), (4985, 51507), (5723, 44865), (8973, 28615), (14955, 17169)]