18786740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134191}}^1$

素因数の和:134207

約数の個数: 24

約数和(自身を含む): 45088512

約数和(自身を除く): 26301772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134191, 268382, 536764, 670955, 939337, 1341910, 1878674, 2683820, 3757348, 4696685, 9393370, 18786740]

約数ペア:

[(1, 18786740), (2, 9393370), (4, 4696685), (5, 3757348), (7, 2683820), (10, 1878674), (14, 1341910), (20, 939337), (28, 670955), (35, 536764), (70, 268382), (140, 134191)]