28178055

素因数分解:

$3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1531}}^1$

素因数の和:1951

約数の個数: 24

約数和(自身を含む): 48993360

約数和(自身を除く): 20815305

約数列:

[1, 3, 5, 9, 15, 45, 409, 1227, 1531, 2045, 3681, 4593, 6135, 7655, 13779, 18405, 22965, 68895, 626179, 1878537, 3130895, 5635611, 9392685, 28178055]

約数ペア:

[(1, 28178055), (3, 9392685), (5, 5635611), (9, 3130895), (15, 1878537), (45, 626179), (409, 68895), (1227, 22965), (1531, 18405), (2045, 13779), (3681, 7655), (4593, 6135)]