209860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1499}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 504000

約数和(自身を除く): 294140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1499, 2998, 5996, 7495, 10493, 14990, 20986, 29980, 41972, 52465, 104930, 209860]

約数ペア:

[(1, 209860), (2, 104930), (4, 52465), (5, 41972), (7, 29980), (10, 20986), (14, 14990), (20, 10493), (28, 7495), (35, 5996), (70, 2998), (140, 1499)]