18764140

素因数分解:

$2^2\times 5^1\times {\mathrm{938207}}^1$

素因数の和:938216

約数の個数: 12

約数和(自身を含む): 39404736

約数和(自身を除く): 20640596

約数列:

[1, 2, 4, 5, 10, 20, 938207, 1876414, 3752828, 4691035, 9382070, 18764140]

約数ペア:

[(1, 18764140), (2, 9382070), (4, 4691035), (5, 3752828), (10, 1876414), (20, 938207)]