68814555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 117039168

約数和(自身を除く): 48224613

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 421, 641, 1263, 1923, 2105, 3205, 6315, 7157, 9615, 10897, 21471, 32691, 35785, 54485, 107355, 163455, 269861, 809583, 1349305, 4047915, 4587637, 13762911, 22938185, 68814555]

約数ペア:

[(1, 68814555), (3, 22938185), (5, 13762911), (15, 4587637), (17, 4047915), (51, 1349305), (85, 809583), (255, 269861), (421, 163455), (641, 107355), (1263, 54485), (1923, 35785), (2105, 32691), (3205, 21471), (6315, 10897), (7157, 9615)]