20739675

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1093}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 39068928

約数和(自身を除く): 18329253

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1093, 1265, 1725, 3279, 3795, 5465, 6325, 12023, 16395, 18975, 25139, 27325, 36069, 60115, 75417, 81975, 125695, 180345, 276529, 300575, 377085, 628475, 829587, 901725, 1382645, 1885425, 4147935, 6913225, 20739675]

約数ペア:

[(1, 20739675), (3, 6913225), (5, 4147935), (11, 1885425), (15, 1382645), (23, 901725), (25, 829587), (33, 628475), (55, 377085), (69, 300575), (75, 276529), (115, 180345), (165, 125695), (253, 81975), (275, 75417), (345, 60115), (575, 36069), (759, 27325), (825, 25139), (1093, 18975), (1265, 16395), (1725, 12023), (3279, 6325), (3795, 5465)]