20005212

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 48559392

約数和(自身を除く): 28554180

約数列:

[1, 2, 3, 4, 6, 12, 41, 73, 82, 123, 146, 164, 219, 246, 292, 438, 492, 557, 876, 1114, 1671, 2228, 2993, 3342, 5986, 6684, 8979, 11972, 17958, 22837, 35916, 40661, 45674, 68511, 81322, 91348, 121983, 137022, 162644, 243966, 274044, 487932, 1667101, 3334202, 5001303, 6668404, 10002606, 20005212]

約数ペア:

[(1, 20005212), (2, 10002606), (3, 6668404), (4, 5001303), (6, 3334202), (12, 1667101), (41, 487932), (73, 274044), (82, 243966), (123, 162644), (146, 137022), (164, 121983), (219, 91348), (246, 81322), (292, 68511), (438, 45674), (492, 40661), (557, 35916), (876, 22837), (1114, 17958), (1671, 11972), (2228, 8979), (2993, 6684), (3342, 5986)]