31345888

素因数分解:

$2^5\times 7^2\times {\mathrm{19991}}^1$

素因数の和:20015

約数の個数: 36

約数和(自身を含む): 71791272

約数和(自身を除く): 40445384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 19991, 39982, 79964, 139937, 159928, 279874, 319856, 559748, 639712, 979559, 1119496, 1959118, 2238992, 3918236, 4477984, 7836472, 15672944, 31345888]

約数ペア:

[(1, 31345888), (2, 15672944), (4, 7836472), (7, 4477984), (8, 3918236), (14, 2238992), (16, 1959118), (28, 1119496), (32, 979559), (49, 639712), (56, 559748), (98, 319856), (112, 279874), (196, 159928), (224, 139937), (392, 79964), (784, 39982), (1568, 19991)]