28657888

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4127}}^1$

素因数の和:4175

約数の個数: 48

約数和(自身を含む): 66576384

約数和(自身を除く): 37918496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3472, 4127, 6944, 8254, 16508, 28889, 33016, 57778, 66032, 115556, 127937, 132064, 231112, 255874, 462224, 511748, 895559, 924448, 1023496, 1791118, 2046992, 3582236, 4093984, 7164472, 14328944, 28657888]

約数ペア:

[(1, 28657888), (2, 14328944), (4, 7164472), (7, 4093984), (8, 3582236), (14, 2046992), (16, 1791118), (28, 1023496), (31, 924448), (32, 895559), (56, 511748), (62, 462224), (112, 255874), (124, 231112), (217, 132064), (224, 127937), (248, 115556), (434, 66032), (496, 57778), (868, 33016), (992, 28889), (1736, 16508), (3472, 8254), (4127, 6944)]