20623456

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4003}}^1$

素因数の和:4043

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 27808928

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4003, 5152, 8006, 16012, 28021, 32024, 56042, 64048, 92069, 112084, 128096, 184138, 224168, 368276, 448336, 644483, 736552, 896672, 1288966, 1473104, 2577932, 2946208, 5155864, 10311728, 20623456]

約数ペア:

[(1, 20623456), (2, 10311728), (4, 5155864), (7, 2946208), (8, 2577932), (14, 1473104), (16, 1288966), (23, 896672), (28, 736552), (32, 644483), (46, 448336), (56, 368276), (92, 224168), (112, 184138), (161, 128096), (184, 112084), (224, 92069), (322, 64048), (368, 56042), (644, 32024), (736, 28021), (1288, 16012), (2576, 8006), (4003, 5152)]