681561328

素因数分解:

$2^4\times 7^1\times {\mathrm{1289}}^1\times {\mathrm{4721}}^1$

素因数の和:6025

約数の個数: 40

約数和(自身を含む): 1510662240

約数和(自身を除く): 829100912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1289, 2578, 4721, 5156, 9023, 9442, 10312, 18046, 18884, 20624, 33047, 36092, 37768, 66094, 72184, 75536, 132188, 144368, 264376, 528752, 6085369, 12170738, 24341476, 42597583, 48682952, 85195166, 97365904, 170390332, 340780664, 681561328]

約数ペア:

[(1, 681561328), (2, 340780664), (4, 170390332), (7, 97365904), (8, 85195166), (14, 48682952), (16, 42597583), (28, 24341476), (56, 12170738), (112, 6085369), (1289, 528752), (2578, 264376), (4721, 144368), (5156, 132188), (9023, 75536), (9442, 72184), (10312, 66094), (18046, 37768), (18884, 36092), (20624, 33047)]