1920800

素因数分解:

$2^5\times 5^2\times 7^4$

素因数の和:48

約数の個数: 90

約数和(自身を含む): 5470353

約数和(自身を除く): 3549553

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 343, 350, 392, 400, 490, 560, 686, 700, 784, 800, 980, 1120, 1225, 1372, 1400, 1568, 1715, 1960, 2401, 2450, 2744, 2800, 3430, 3920, 4802, 4900, 5488, 5600, 6860, 7840, 8575, 9604, 9800, 10976, 12005, 13720, 17150, 19208, 19600, 24010, 27440, 34300, 38416, 39200, 48020, 54880, 60025, 68600, 76832, 96040, 120050, 137200, 192080, 240100, 274400, 384160, 480200, 960400, 1920800]

約数ペア:

[(1, 1920800), (2, 960400), (4, 480200), (5, 384160), (7, 274400), (8, 240100), (10, 192080), (14, 137200), (16, 120050), (20, 96040), (25, 76832), (28, 68600), (32, 60025), (35, 54880), (40, 48020), (49, 39200), (50, 38416), (56, 34300), (70, 27440), (80, 24010), (98, 19600), (100, 19208), (112, 17150), (140, 13720), (160, 12005), (175, 10976), (196, 9800), (200, 9604), (224, 8575), (245, 7840), (280, 6860), (343, 5600), (350, 5488), (392, 4900), (400, 4802), (490, 3920), (560, 3430), (686, 2800), (700, 2744), (784, 2450), (800, 2401), (980, 1960), (1120, 1715), (1225, 1568), (1372, 1400)]