28137680

素因数分解:

$2^4\times 5^1\times {\mathrm{547}}^1\times {\mathrm{643}}^1$

素因数の和:1203

約数の個数: 40

約数和(自身を含む): 65641632

約数和(自身を除く): 37503952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 547, 643, 1094, 1286, 2188, 2572, 2735, 3215, 4376, 5144, 5470, 6430, 8752, 10288, 10940, 12860, 21880, 25720, 43760, 51440, 351721, 703442, 1406884, 1758605, 2813768, 3517210, 5627536, 7034420, 14068840, 28137680]

約数ペア:

[(1, 28137680), (2, 14068840), (4, 7034420), (5, 5627536), (8, 3517210), (10, 2813768), (16, 1758605), (20, 1406884), (40, 703442), (80, 351721), (547, 51440), (643, 43760), (1094, 25720), (1286, 21880), (2188, 12860), (2572, 10940), (2735, 10288), (3215, 8752), (4376, 6430), (5144, 5470)]