20251520

素因数分解:

$2^7\times 5^1\times {\mathrm{31643}}^1$

素因数の和:31662

約数の個数: 32

約数和(自身を含む): 48415320

約数和(自身を除く): 28163800

約数列:

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

約数ペア:

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