81521888

素因数分解:

$2^5\times 7^2\times {\mathrm{51991}}^1$

素因数の和:52015

約数の個数: 36

約数和(自身を含む): 186703272

約数和(自身を除く): 105181384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 51991, 103982, 207964, 363937, 415928, 727874, 831856, 1455748, 1663712, 2547559, 2911496, 5095118, 5822992, 10190236, 11645984, 20380472, 40760944, 81521888]

約数ペア:

[(1, 81521888), (2, 40760944), (4, 20380472), (7, 11645984), (8, 10190236), (14, 5822992), (16, 5095118), (28, 2911496), (32, 2547559), (49, 1663712), (56, 1455748), (98, 831856), (112, 727874), (196, 415928), (224, 363937), (392, 207964), (784, 103982), (1568, 51991)]