28385320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9721}}^1$

素因数の和:9805

約数の個数: 32

約数和(自身を含む): 64748520

約数和(自身を除く): 36363200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 9721, 19442, 38884, 48605, 77768, 97210, 194420, 388840, 709633, 1419266, 2838532, 3548165, 5677064, 7096330, 14192660, 28385320]

約数ペア:

[(1, 28385320), (2, 14192660), (4, 7096330), (5, 5677064), (8, 3548165), (10, 2838532), (20, 1419266), (40, 709633), (73, 388840), (146, 194420), (292, 97210), (365, 77768), (584, 48605), (730, 38884), (1460, 19442), (2920, 9721)]