81405144

素因数分解:

$2^3\times 3^2\times {\mathrm{1130627}}^1$

素因数の和:1130639

約数の個数: 24

約数和(自身を含む): 220472460

約数和(自身を除く): 139067316

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1130627, 2261254, 3391881, 4522508, 6783762, 9045016, 10175643, 13567524, 20351286, 27135048, 40702572, 81405144]

約数ペア:

[(1, 81405144), (2, 40702572), (3, 27135048), (4, 20351286), (6, 13567524), (8, 10175643), (9, 9045016), (12, 6783762), (18, 4522508), (24, 3391881), (36, 2261254), (72, 1130627)]