28657168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{881}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 59058720

約数和(自身を除く): 30401552

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 107, 152, 214, 304, 428, 856, 881, 1712, 1762, 2033, 3524, 4066, 7048, 8132, 14096, 16264, 16739, 32528, 33478, 66956, 94267, 133912, 188534, 267824, 377068, 754136, 1508272, 1791073, 3582146, 7164292, 14328584, 28657168]

約数ペア:

[(1, 28657168), (2, 14328584), (4, 7164292), (8, 3582146), (16, 1791073), (19, 1508272), (38, 754136), (76, 377068), (107, 267824), (152, 188534), (214, 133912), (304, 94267), (428, 66956), (856, 33478), (881, 32528), (1712, 16739), (1762, 16264), (2033, 14096), (3524, 8132), (4066, 7048)]