81357472

素因数分解:

$2^5\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1381}}^1$

素因数の和:1661

約数の個数: 48

約数和(自身を含む): 183883392

約数和(自身を除く): 102525920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 263, 526, 1052, 1381, 1841, 2104, 2762, 3682, 4208, 5524, 7364, 8416, 9667, 11048, 14728, 19334, 22096, 29456, 38668, 44192, 58912, 77336, 154672, 309344, 363203, 726406, 1452812, 2542421, 2905624, 5084842, 5811248, 10169684, 11622496, 20339368, 40678736, 81357472]

約数ペア:

[(1, 81357472), (2, 40678736), (4, 20339368), (7, 11622496), (8, 10169684), (14, 5811248), (16, 5084842), (28, 2905624), (32, 2542421), (56, 1452812), (112, 726406), (224, 363203), (263, 309344), (526, 154672), (1052, 77336), (1381, 58912), (1841, 44192), (2104, 38668), (2762, 29456), (3682, 22096), (4208, 19334), (5524, 14728), (7364, 11048), (8416, 9667)]