81549075

素因数分解:

$3^1\times 5^2\times {\mathrm{499}}^1\times {\mathrm{2179}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 135160000

約数和(自身を除く): 53610925

約数列:

[1, 3, 5, 15, 25, 75, 499, 1497, 2179, 2495, 6537, 7485, 10895, 12475, 32685, 37425, 54475, 163425, 1087321, 3261963, 5436605, 16309815, 27183025, 81549075]

約数ペア:

[(1, 81549075), (3, 27183025), (5, 16309815), (15, 5436605), (25, 3261963), (75, 1087321), (499, 163425), (1497, 54475), (2179, 37425), (2495, 32685), (6537, 12475), (7485, 10895)]