28987520

素因数分解:

$2^7\times 5^1\times {\mathrm{45293}}^1$

素因数の和:45312

約数の個数: 32

約数和(自身を含む): 69299820

約数和(自身を除く): 40312300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 45293, 90586, 181172, 226465, 362344, 452930, 724688, 905860, 1449376, 1811720, 2898752, 3623440, 5797504, 7246880, 14493760, 28987520]

約数ペア:

[(1, 28987520), (2, 14493760), (4, 7246880), (5, 5797504), (8, 3623440), (10, 2898752), (16, 1811720), (20, 1449376), (32, 905860), (40, 724688), (64, 452930), (80, 362344), (128, 226465), (160, 181172), (320, 90586), (640, 45293)]