18759860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133999}}^1$

素因数の和:134015

約数の個数: 24

約数和(自身を含む): 45024000

約数和(自身を除く): 26264140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133999, 267998, 535996, 669995, 937993, 1339990, 1875986, 2679980, 3751972, 4689965, 9379930, 18759860]

約数ペア:

[(1, 18759860), (2, 9379930), (4, 4689965), (5, 3751972), (7, 2679980), (10, 1875986), (14, 1339990), (20, 937993), (28, 669995), (35, 535996), (70, 267998), (140, 133999)]