81211425

素因数分解:

$3^1\times 5^2\times {\mathrm{373}}^1\times {\mathrm{2903}}^1$

素因数の和:3289

約数の個数: 24

約数和(自身を含む): 134675904

約数和(自身を除く): 53464479

約数列:

[1, 3, 5, 15, 25, 75, 373, 1119, 1865, 2903, 5595, 8709, 9325, 14515, 27975, 43545, 72575, 217725, 1082819, 3248457, 5414095, 16242285, 27070475, 81211425]

約数ペア:

[(1, 81211425), (3, 27070475), (5, 16242285), (15, 5414095), (25, 3248457), (75, 1082819), (373, 217725), (1119, 72575), (1865, 43545), (2903, 27975), (5595, 14515), (8709, 9325)]