1028800

素因数分解:

$2^6\times 5^2\times {\mathrm{643}}^1$

素因数の和:665

約数の個数: 42

約数和(自身を含む): 2535428

約数和(自身を除く): 1506628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 643, 800, 1286, 1600, 2572, 3215, 5144, 6430, 10288, 12860, 16075, 20576, 25720, 32150, 41152, 51440, 64300, 102880, 128600, 205760, 257200, 514400, 1028800]

約数ペア:

[(1, 1028800), (2, 514400), (4, 257200), (5, 205760), (8, 128600), (10, 102880), (16, 64300), (20, 51440), (25, 41152), (32, 32150), (40, 25720), (50, 20576), (64, 16075), (80, 12860), (100, 10288), (160, 6430), (200, 5144), (320, 3215), (400, 2572), (643, 1600), (800, 1286)]