18656540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133261}}^1$

素因数の和:133277

約数の個数: 24

約数和(自身を含む): 44776032

約数和(自身を除く): 26119492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133261, 266522, 533044, 666305, 932827, 1332610, 1865654, 2665220, 3731308, 4664135, 9328270, 18656540]

約数ペア:

[(1, 18656540), (2, 9328270), (4, 4664135), (5, 3731308), (7, 2665220), (10, 1865654), (14, 1332610), (20, 932827), (28, 666305), (35, 533044), (70, 266522), (140, 133261)]