278316435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{733}}^1\times {\mathrm{1489}}^1$

素因数の和:2247

約数の個数: 32

約数和(自身を含む): 472461120

約数和(自身を除く): 194144685

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 733, 1489, 2199, 3665, 4467, 7445, 10995, 12461, 22335, 25313, 37383, 62305, 75939, 126565, 186915, 379695, 1091437, 3274311, 5457185, 16371555, 18554429, 55663287, 92772145, 278316435]

約数ペア:

[(1, 278316435), (3, 92772145), (5, 55663287), (15, 18554429), (17, 16371555), (51, 5457185), (85, 3274311), (255, 1091437), (733, 379695), (1489, 186915), (2199, 126565), (3665, 75939), (4467, 62305), (7445, 37383), (10995, 25313), (12461, 22335)]