18330680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{941}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 41372640

約数和(自身を除く): 23041960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 941, 974, 1882, 1948, 2435, 3764, 3896, 4705, 4870, 7528, 9410, 9740, 18820, 19480, 37640, 458267, 916534, 1833068, 2291335, 3666136, 4582670, 9165340, 18330680]

約数ペア:

[(1, 18330680), (2, 9165340), (4, 4582670), (5, 3666136), (8, 2291335), (10, 1833068), (20, 916534), (40, 458267), (487, 37640), (941, 19480), (974, 18820), (1882, 9740), (1948, 9410), (2435, 7528), (3764, 4870), (3896, 4705)]