1296603985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{1109}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 1696435200

約数和(自身を除く): 399831215

約数列:

[1, 5, 19, 31, 95, 155, 397, 589, 1109, 1985, 2945, 5545, 7543, 12307, 21071, 34379, 37715, 61535, 105355, 171895, 233833, 440273, 653201, 1169165, 2201365, 3266005, 8365187, 13648463, 41825935, 68242315, 259320797, 1296603985]

約数ペア:

[(1, 1296603985), (5, 259320797), (19, 68242315), (31, 41825935), (95, 13648463), (155, 8365187), (397, 3266005), (589, 2201365), (1109, 1169165), (1985, 653201), (2945, 440273), (5545, 233833), (7543, 171895), (12307, 105355), (21071, 61535), (34379, 37715)]