854560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{109}}^1$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 2370060

約数和(自身を除く): 1515500

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 109, 112, 140, 160, 196, 218, 224, 245, 280, 392, 436, 490, 545, 560, 763, 784, 872, 980, 1090, 1120, 1526, 1568, 1744, 1960, 2180, 3052, 3488, 3815, 3920, 4360, 5341, 6104, 7630, 7840, 8720, 10682, 12208, 15260, 17440, 21364, 24416, 26705, 30520, 42728, 53410, 61040, 85456, 106820, 122080, 170912, 213640, 427280, 854560]

約数ペア:

[(1, 854560), (2, 427280), (4, 213640), (5, 170912), (7, 122080), (8, 106820), (10, 85456), (14, 61040), (16, 53410), (20, 42728), (28, 30520), (32, 26705), (35, 24416), (40, 21364), (49, 17440), (56, 15260), (70, 12208), (80, 10682), (98, 8720), (109, 7840), (112, 7630), (140, 6104), (160, 5341), (196, 4360), (218, 3920), (224, 3815), (245, 3488), (280, 3052), (392, 2180), (436, 1960), (490, 1744), (545, 1568), (560, 1526), (763, 1120), (784, 1090), (872, 980)]