20181390992

素因数分解:

$2^4\times 7^1\times {\mathrm{180190991}}^1$

素因数の和:180191006

約数の個数: 20

約数和(自身を含む): 44687366016

約数和(自身を除く): 24505975024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 180190991, 360381982, 720763964, 1261336937, 1441527928, 2522673874, 2883055856, 5045347748, 10090695496, 20181390992]

約数ペア:

[(1, 20181390992), (2, 10090695496), (4, 5045347748), (7, 2883055856), (8, 2522673874), (14, 1441527928), (16, 1261336937), (28, 720763964), (56, 360381982), (112, 180190991)]