19936000

素因数分解:

$2^8\times 5^3\times 7^1\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 57395520

約数和(自身を除く): 37459520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 89, 100, 112, 125, 128, 140, 160, 175, 178, 200, 224, 250, 256, 280, 320, 350, 356, 400, 445, 448, 500, 560, 623, 640, 700, 712, 800, 875, 890, 896, 1000, 1120, 1246, 1280, 1400, 1424, 1600, 1750, 1780, 1792, 2000, 2225, 2240, 2492, 2800, 2848, 3115, 3200, 3500, 3560, 4000, 4450, 4480, 4984, 5600, 5696, 6230, 6400, 7000, 7120, 8000, 8900, 8960, 9968, 11125, 11200, 11392, 12460, 14000, 14240, 15575, 16000, 17800, 19936, 22250, 22400, 22784, 24920, 28000, 28480, 31150, 32000, 35600, 39872, 44500, 44800, 49840, 56000, 56960, 62300, 71200, 77875, 79744, 89000, 99680, 112000, 113920, 124600, 142400, 155750, 159488, 178000, 199360, 224000, 249200, 284800, 311500, 356000, 398720, 498400, 569600, 623000, 712000, 797440, 996800, 1246000, 1424000, 1993600, 2492000, 2848000, 3987200, 4984000, 9968000, 19936000]

約数ペア:

[(1, 19936000), (2, 9968000), (4, 4984000), (5, 3987200), (7, 2848000), (8, 2492000), (10, 1993600), (14, 1424000), (16, 1246000), (20, 996800), (25, 797440), (28, 712000), (32, 623000), (35, 569600), (40, 498400), (50, 398720), (56, 356000), (64, 311500), (70, 284800), (80, 249200), (89, 224000), (100, 199360), (112, 178000), (125, 159488), (128, 155750), (140, 142400), (160, 124600), (175, 113920), (178, 112000), (200, 99680), (224, 89000), (250, 79744), (256, 77875), (280, 71200), (320, 62300), (350, 56960), (356, 56000), (400, 49840), (445, 44800), (448, 44500), (500, 39872), (560, 35600), (623, 32000), (640, 31150), (700, 28480), (712, 28000), (800, 24920), (875, 22784), (890, 22400), (896, 22250), (1000, 19936), (1120, 17800), (1246, 16000), (1280, 15575), (1400, 14240), (1424, 14000), (1600, 12460), (1750, 11392), (1780, 11200), (1792, 11125), (2000, 9968), (2225, 8960), (2240, 8900), (2492, 8000), (2800, 7120), (2848, 7000), (3115, 6400), (3200, 6230), (3500, 5696), (3560, 5600), (4000, 4984), (4450, 4480)]