12644660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 30576000

約数和(自身を除く): 17931340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 499, 724, 905, 998, 1267, 1810, 1996, 2495, 2534, 3493, 3620, 4990, 5068, 6335, 6986, 9980, 12670, 13972, 17465, 25340, 34930, 69860, 90319, 180638, 361276, 451595, 632233, 903190, 1264466, 1806380, 2528932, 3161165, 6322330, 12644660]

約数ペア:

[(1, 12644660), (2, 6322330), (4, 3161165), (5, 2528932), (7, 1806380), (10, 1264466), (14, 903190), (20, 632233), (28, 451595), (35, 361276), (70, 180638), (140, 90319), (181, 69860), (362, 34930), (499, 25340), (724, 17465), (905, 13972), (998, 12670), (1267, 9980), (1810, 6986), (1996, 6335), (2495, 5068), (2534, 4990), (3493, 3620)]