19587280

素因数分解:

$2^4\times 5^1\times {\mathrm{244841}}^1$

素因数の和:244854

約数の個数: 20

約数和(自身を含む): 45540612

約数和(自身を除く): 25953332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244841, 489682, 979364, 1224205, 1958728, 2448410, 3917456, 4896820, 9793640, 19587280]

約数ペア:

[(1, 19587280), (2, 9793640), (4, 4896820), (5, 3917456), (8, 2448410), (10, 1958728), (16, 1224205), (20, 979364), (40, 489682), (80, 244841)]