168489440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{21491}}^1$

素因数の和:21520

約数の個数: 72

約数和(自身を含む): 463066632

約数和(自身を除く): 294577192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 21491, 42982, 85964, 107455, 150437, 171928, 214910, 300874, 343856, 429820, 601748, 687712, 752185, 859640, 1053059, 1203496, 1504370, 1719280, 2106118, 2406992, 3008740, 3438560, 4212236, 4813984, 5265295, 6017480, 8424472, 10530590, 12034960, 16848944, 21061180, 24069920, 33697888, 42122360, 84244720, 168489440]

約数ペア:

[(1, 168489440), (2, 84244720), (4, 42122360), (5, 33697888), (7, 24069920), (8, 21061180), (10, 16848944), (14, 12034960), (16, 10530590), (20, 8424472), (28, 6017480), (32, 5265295), (35, 4813984), (40, 4212236), (49, 3438560), (56, 3008740), (70, 2406992), (80, 2106118), (98, 1719280), (112, 1504370), (140, 1203496), (160, 1053059), (196, 859640), (224, 752185), (245, 687712), (280, 601748), (392, 429820), (490, 343856), (560, 300874), (784, 214910), (980, 171928), (1120, 150437), (1568, 107455), (1960, 85964), (3920, 42982), (7840, 21491)]