28811315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 11407885

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 569, 779, 1235, 2665, 2845, 3895, 7397, 10127, 10811, 23329, 36985, 50635, 54055, 116645, 140543, 303277, 443251, 702715, 1516385, 2216255, 5762263, 28811315]

約数ペア:

[(1, 28811315), (5, 5762263), (13, 2216255), (19, 1516385), (41, 702715), (65, 443251), (95, 303277), (205, 140543), (247, 116645), (533, 54055), (569, 50635), (779, 36985), (1235, 23329), (2665, 10811), (2845, 10127), (3895, 7397)]