82428800

素因数分解:

$2^7\times 5^2\times {\mathrm{25759}}^1$

素因数の和:25783

約数の個数: 48

約数和(自身を含む): 203632800

約数和(自身を除く): 121204000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 25759, 51518, 103036, 128795, 206072, 257590, 412144, 515180, 643975, 824288, 1030360, 1287950, 1648576, 2060720, 2575900, 3297152, 4121440, 5151800, 8242880, 10303600, 16485760, 20607200, 41214400, 82428800]

約数ペア:

[(1, 82428800), (2, 41214400), (4, 20607200), (5, 16485760), (8, 10303600), (10, 8242880), (16, 5151800), (20, 4121440), (25, 3297152), (32, 2575900), (40, 2060720), (50, 1648576), (64, 1287950), (80, 1030360), (100, 824288), (128, 643975), (160, 515180), (200, 412144), (320, 257590), (400, 206072), (640, 128795), (800, 103036), (1600, 51518), (3200, 25759)]