30866980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17341}}^1$

素因数の和:17439

約数の個数: 24

約数和(自身を含む): 65552760

約数和(自身を除く): 34685780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 17341, 34682, 69364, 86705, 173410, 346820, 1543349, 3086698, 6173396, 7716745, 15433490, 30866980]

約数ペア:

[(1, 30866980), (2, 15433490), (4, 7716745), (5, 6173396), (10, 3086698), (20, 1543349), (89, 346820), (178, 173410), (356, 86705), (445, 69364), (890, 34682), (1780, 17341)]