18409580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131497}}^1$

素因数の和:131513

約数の個数: 24

約数和(自身を含む): 44183328

約数和(自身を除く): 25773748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131497, 262994, 525988, 657485, 920479, 1314970, 1840958, 2629940, 3681916, 4602395, 9204790, 18409580]

約数ペア:

[(1, 18409580), (2, 9204790), (4, 4602395), (5, 3681916), (7, 2629940), (10, 1840958), (14, 1314970), (20, 920479), (28, 657485), (35, 525988), (70, 262994), (140, 131497)]