19400416

素因数分解:

$2^5\times 7^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 43950816

約数和(自身を除く): 24550400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 257, 337, 514, 674, 1028, 1348, 1799, 2056, 2359, 2696, 3598, 4112, 4718, 5392, 7196, 8224, 9436, 10784, 14392, 18872, 28784, 37744, 57568, 75488, 86609, 173218, 346436, 606263, 692872, 1212526, 1385744, 2425052, 2771488, 4850104, 9700208, 19400416]

約数ペア:

[(1, 19400416), (2, 9700208), (4, 4850104), (7, 2771488), (8, 2425052), (14, 1385744), (16, 1212526), (28, 692872), (32, 606263), (56, 346436), (112, 173218), (224, 86609), (257, 75488), (337, 57568), (514, 37744), (674, 28784), (1028, 18872), (1348, 14392), (1799, 10784), (2056, 9436), (2359, 8224), (2696, 7196), (3598, 5392), (4112, 4718)]