313081775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{2801}}^1$

素因数の和:3091

約数の個数: 24

約数和(自身を含む): 412768224

約数和(自身を除く): 99686449

約数列:

[1, 5, 17, 25, 85, 263, 425, 1315, 2801, 4471, 6575, 14005, 22355, 47617, 70025, 111775, 238085, 736663, 1190425, 3683315, 12523271, 18416575, 62616355, 313081775]

約数ペア:

[(1, 313081775), (5, 62616355), (17, 18416575), (25, 12523271), (85, 3683315), (263, 1190425), (425, 736663), (1315, 238085), (2801, 111775), (4471, 70025), (6575, 47617), (14005, 22355)]