251811728

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1459}}^1$

素因数の和:1564

約数の個数: 80

約数和(自身を含む): 590914560

約数和(自身を除く): 339102832

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 67, 92, 112, 134, 161, 184, 268, 322, 368, 469, 536, 644, 938, 1072, 1288, 1459, 1541, 1876, 2576, 2918, 3082, 3752, 5836, 6164, 7504, 10213, 10787, 11672, 12328, 20426, 21574, 23344, 24656, 33557, 40852, 43148, 67114, 81704, 86296, 97753, 134228, 163408, 172592, 195506, 234899, 268456, 391012, 469798, 536912, 684271, 782024, 939596, 1368542, 1564048, 1879192, 2248319, 2737084, 3758384, 4496638, 5474168, 8993276, 10948336, 15738233, 17986552, 31476466, 35973104, 62952932, 125905864, 251811728]

約数ペア:

[(1, 251811728), (2, 125905864), (4, 62952932), (7, 35973104), (8, 31476466), (14, 17986552), (16, 15738233), (23, 10948336), (28, 8993276), (46, 5474168), (56, 4496638), (67, 3758384), (92, 2737084), (112, 2248319), (134, 1879192), (161, 1564048), (184, 1368542), (268, 939596), (322, 782024), (368, 684271), (469, 536912), (536, 469798), (644, 391012), (938, 268456), (1072, 234899), (1288, 195506), (1459, 172592), (1541, 163408), (1876, 134228), (2576, 97753), (2918, 86296), (3082, 81704), (3752, 67114), (5836, 43148), (6164, 40852), (7504, 33557), (10213, 24656), (10787, 23344), (11672, 21574), (12328, 20426)]