139640980

素因数分解:

$2^2\times 5^1\times {\mathrm{6982049}}^1$

素因数の和:6982058

約数の個数: 12

約数和(自身を含む): 293246100

約数和(自身を除く): 153605120

約数列:

[1, 2, 4, 5, 10, 20, 6982049, 13964098, 27928196, 34910245, 69820490, 139640980]

約数ペア:

[(1, 139640980), (2, 69820490), (4, 34910245), (5, 27928196), (10, 13964098), (20, 6982049)]