19702340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140731}}^1$

素因数の和:140747

約数の個数: 24

約数和(自身を含む): 47285952

約数和(自身を除く): 27583612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140731, 281462, 562924, 703655, 985117, 1407310, 1970234, 2814620, 3940468, 4925585, 9851170, 19702340]

約数ペア:

[(1, 19702340), (2, 9851170), (4, 4925585), (5, 3940468), (7, 2814620), (10, 1970234), (14, 1407310), (20, 985117), (28, 703655), (35, 562924), (70, 281462), (140, 140731)]