15979820

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1039}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 17653780

約数列:

[1, 2, 4, 5, 10, 20, 769, 1039, 1538, 2078, 3076, 3845, 4156, 5195, 7690, 10390, 15380, 20780, 798991, 1597982, 3195964, 3994955, 7989910, 15979820]

約数ペア:

[(1, 15979820), (2, 7989910), (4, 3994955), (5, 3195964), (10, 1597982), (20, 798991), (769, 20780), (1039, 15380), (1538, 10390), (2078, 7690), (3076, 5195), (3845, 4156)]