18689860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133499}}^1$

素因数の和:133515

約数の個数: 24

約数和(自身を含む): 44856000

約数和(自身を除く): 26166140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133499, 266998, 533996, 667495, 934493, 1334990, 1868986, 2669980, 3737972, 4672465, 9344930, 18689860]

約数ペア:

[(1, 18689860), (2, 9344930), (4, 4672465), (5, 3737972), (7, 2669980), (10, 1868986), (14, 1334990), (20, 934493), (28, 667495), (35, 533996), (70, 266998), (140, 133499)]