18313456

素因数分解:

$2^4\times 7^3\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 80

約数和(自身を含む): 42854400

約数和(自身を除く): 24540944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 49, 56, 71, 94, 98, 112, 142, 188, 196, 284, 329, 343, 376, 392, 497, 568, 658, 686, 752, 784, 994, 1136, 1316, 1372, 1988, 2303, 2632, 2744, 3337, 3479, 3976, 4606, 5264, 5488, 6674, 6958, 7952, 9212, 13348, 13916, 16121, 18424, 23359, 24353, 26696, 27832, 32242, 36848, 46718, 48706, 53392, 55664, 64484, 93436, 97412, 128968, 163513, 186872, 194824, 257936, 327026, 373744, 389648, 654052, 1144591, 1308104, 2289182, 2616208, 4578364, 9156728, 18313456]

約数ペア:

[(1, 18313456), (2, 9156728), (4, 4578364), (7, 2616208), (8, 2289182), (14, 1308104), (16, 1144591), (28, 654052), (47, 389648), (49, 373744), (56, 327026), (71, 257936), (94, 194824), (98, 186872), (112, 163513), (142, 128968), (188, 97412), (196, 93436), (284, 64484), (329, 55664), (343, 53392), (376, 48706), (392, 46718), (497, 36848), (568, 32242), (658, 27832), (686, 26696), (752, 24353), (784, 23359), (994, 18424), (1136, 16121), (1316, 13916), (1372, 13348), (1988, 9212), (2303, 7952), (2632, 6958), (2744, 6674), (3337, 5488), (3479, 5264), (3976, 4606)]