19139180

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1949}}^1$

素因数の和:2449

約数の個数: 24

約数和(自身を含む): 40294800

約数和(自身を除く): 21155620

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1949, 1964, 2455, 3898, 4910, 7796, 9745, 9820, 19490, 38980, 956959, 1913918, 3827836, 4784795, 9569590, 19139180]

約数ペア:

[(1, 19139180), (2, 9569590), (4, 4784795), (5, 3827836), (10, 1913918), (20, 956959), (491, 38980), (982, 19490), (1949, 9820), (1964, 9745), (2455, 7796), (3898, 4910)]