28408072

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 67184640

約数和(自身を除く): 38776568

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 107, 154, 214, 308, 428, 431, 616, 749, 856, 862, 1177, 1498, 1724, 2354, 2996, 3017, 3448, 4708, 4741, 5992, 6034, 8239, 9416, 9482, 12068, 16478, 18964, 24136, 32956, 33187, 37928, 46117, 65912, 66374, 92234, 132748, 184468, 265496, 322819, 368936, 507287, 645638, 1014574, 1291276, 2029148, 2582552, 3551009, 4058296, 7102018, 14204036, 28408072]

約数ペア:

[(1, 28408072), (2, 14204036), (4, 7102018), (7, 4058296), (8, 3551009), (11, 2582552), (14, 2029148), (22, 1291276), (28, 1014574), (44, 645638), (56, 507287), (77, 368936), (88, 322819), (107, 265496), (154, 184468), (214, 132748), (308, 92234), (428, 66374), (431, 65912), (616, 46117), (749, 37928), (856, 33187), (862, 32956), (1177, 24136), (1498, 18964), (1724, 16478), (2354, 12068), (2996, 9482), (3017, 9416), (3448, 8239), (4708, 6034), (4741, 5992)]