81496072

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 179712000

約数和(自身を除く): 98215928

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 103, 142, 199, 206, 284, 398, 412, 497, 568, 721, 796, 824, 994, 1393, 1442, 1592, 1988, 2786, 2884, 3976, 5572, 5768, 7313, 11144, 14129, 14626, 20497, 28258, 29252, 40994, 51191, 56516, 58504, 81988, 98903, 102382, 113032, 143479, 163976, 197806, 204764, 286958, 395612, 409528, 573916, 791224, 1147832, 1455287, 2910574, 5821148, 10187009, 11642296, 20374018, 40748036, 81496072]

約数ペア:

[(1, 81496072), (2, 40748036), (4, 20374018), (7, 11642296), (8, 10187009), (14, 5821148), (28, 2910574), (56, 1455287), (71, 1147832), (103, 791224), (142, 573916), (199, 409528), (206, 395612), (284, 286958), (398, 204764), (412, 197806), (497, 163976), (568, 143479), (721, 113032), (796, 102382), (824, 98903), (994, 81988), (1393, 58504), (1442, 56516), (1592, 51191), (1988, 40994), (2786, 29252), (2884, 28258), (3976, 20497), (5572, 14626), (5768, 14129), (7313, 11144)]