18897130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{541}}^1$

素因数の和:1054

約数の個数: 32

約数和(自身を含む): 39024000

約数和(自身を除く): 20126870

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 499, 541, 998, 1082, 2495, 2705, 3493, 3787, 4990, 5410, 6986, 7574, 17465, 18935, 34930, 37870, 269959, 539918, 1349795, 1889713, 2699590, 3779426, 9448565, 18897130]

約数ペア:

[(1, 18897130), (2, 9448565), (5, 3779426), (7, 2699590), (10, 1889713), (14, 1349795), (35, 539918), (70, 269959), (499, 37870), (541, 34930), (998, 18935), (1082, 17465), (2495, 7574), (2705, 6986), (3493, 5410), (3787, 4990)]