81006080

素因数分解:

$2^9\times 5^1\times {\mathrm{31643}}^1$

素因数の和:31666

約数の個数: 40

約数和(自身を含む): 194230872

約数和(自身を除く): 113224792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 31643, 63286, 126572, 158215, 253144, 316430, 506288, 632860, 1012576, 1265720, 2025152, 2531440, 4050304, 5062880, 8100608, 10125760, 16201216, 20251520, 40503040, 81006080]

約数ペア:

[(1, 81006080), (2, 40503040), (4, 20251520), (5, 16201216), (8, 10125760), (10, 8100608), (16, 5062880), (20, 4050304), (32, 2531440), (40, 2025152), (64, 1265720), (80, 1012576), (128, 632860), (160, 506288), (256, 316430), (320, 253144), (512, 158215), (640, 126572), (1280, 63286), (2560, 31643)]