1254400

素因数分解:

$2^{10}\times 5^2\times 7^2$

素因数の和:44

約数の個数: 99

約数和(自身を含む): 3617049

約数和(自身を除く): 2362649

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 256, 280, 320, 350, 392, 400, 448, 490, 512, 560, 640, 700, 784, 800, 896, 980, 1024, 1120, 1225, 1280, 1400, 1568, 1600, 1792, 1960, 2240, 2450, 2560, 2800, 3136, 3200, 3584, 3920, 4480, 4900, 5120, 5600, 6272, 6400, 7168, 7840, 8960, 9800, 11200, 12544, 12800, 15680, 17920, 19600, 22400, 25088, 25600, 31360, 35840, 39200, 44800, 50176, 62720, 78400, 89600, 125440, 156800, 179200, 250880, 313600, 627200, 1254400]

約数ペア:

[(1, 1254400), (2, 627200), (4, 313600), (5, 250880), (7, 179200), (8, 156800), (10, 125440), (14, 89600), (16, 78400), (20, 62720), (25, 50176), (28, 44800), (32, 39200), (35, 35840), (40, 31360), (49, 25600), (50, 25088), (56, 22400), (64, 19600), (70, 17920), (80, 15680), (98, 12800), (100, 12544), (112, 11200), (128, 9800), (140, 8960), (160, 7840), (175, 7168), (196, 6400), (200, 6272), (224, 5600), (245, 5120), (256, 4900), (280, 4480), (320, 3920), (350, 3584), (392, 3200), (400, 3136), (448, 2800), (490, 2560), (512, 2450), (560, 2240), (640, 1960), (700, 1792), (784, 1600), (800, 1568), (896, 1400), (980, 1280), (1024, 1225)]