3948800

素因数分解:

$2^8\times 5^2\times {\mathrm{617}}^1$

素因数の和:643

約数の個数: 54

約数和(自身を含む): 9789738

約数和(自身を除く): 5840938

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 617, 640, 800, 1234, 1280, 1600, 2468, 3085, 3200, 4936, 6170, 6400, 9872, 12340, 15425, 19744, 24680, 30850, 39488, 49360, 61700, 78976, 98720, 123400, 157952, 197440, 246800, 394880, 493600, 789760, 987200, 1974400, 3948800]

約数ペア:

[(1, 3948800), (2, 1974400), (4, 987200), (5, 789760), (8, 493600), (10, 394880), (16, 246800), (20, 197440), (25, 157952), (32, 123400), (40, 98720), (50, 78976), (64, 61700), (80, 49360), (100, 39488), (128, 30850), (160, 24680), (200, 19744), (256, 15425), (320, 12340), (400, 9872), (617, 6400), (640, 6170), (800, 4936), (1234, 3200), (1280, 3085), (1600, 2468)]