81332888

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{111721}}^1$

素因数の和:111747

約数の個数: 32

約数和(自身を含む): 187692960

約数和(自身を除く): 106360072

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 111721, 223442, 446884, 782047, 893768, 1452373, 1564094, 2904746, 3128188, 5809492, 6256376, 10166611, 11618984, 20333222, 40666444, 81332888]

約数ペア:

[(1, 81332888), (2, 40666444), (4, 20333222), (7, 11618984), (8, 10166611), (13, 6256376), (14, 5809492), (26, 3128188), (28, 2904746), (52, 1564094), (56, 1452373), (91, 893768), (104, 782047), (182, 446884), (364, 223442), (728, 111721)]