7842820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20639}}^1$

素因数の和:20667

約数の個数: 24

約数和(自身を含む): 17337600

約数和(自身を除く): 9494780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 20639, 41278, 82556, 103195, 206390, 392141, 412780, 784282, 1568564, 1960705, 3921410, 7842820]

約数ペア:

[(1, 7842820), (2, 3921410), (4, 1960705), (5, 1568564), (10, 784282), (19, 412780), (20, 392141), (38, 206390), (76, 103195), (95, 82556), (190, 41278), (380, 20639)]