28818200

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1619}}^1$

素因数の和:1724

約数の個数: 48

約数和(自身を含む): 67797000

約数和(自身を除く): 38978800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 356, 445, 712, 890, 1619, 1780, 2225, 3238, 3560, 4450, 6476, 8095, 8900, 12952, 16190, 17800, 32380, 40475, 64760, 80950, 144091, 161900, 288182, 323800, 576364, 720455, 1152728, 1440910, 2881820, 3602275, 5763640, 7204550, 14409100, 28818200]

約数ペア:

[(1, 28818200), (2, 14409100), (4, 7204550), (5, 5763640), (8, 3602275), (10, 2881820), (20, 1440910), (25, 1152728), (40, 720455), (50, 576364), (89, 323800), (100, 288182), (178, 161900), (200, 144091), (356, 80950), (445, 64760), (712, 40475), (890, 32380), (1619, 17800), (1780, 16190), (2225, 12952), (3238, 8900), (3560, 8095), (4450, 6476)]