505890657

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 800194560

約数和(自身を除く): 294303903

約数列:

[1, 3, 9, 27, 43, 47, 73, 127, 129, 141, 219, 381, 387, 423, 657, 1143, 1161, 1269, 1971, 2021, 3139, 3429, 3431, 5461, 5969, 6063, 9271, 9417, 10293, 16383, 17907, 18189, 27813, 28251, 30879, 49149, 53721, 54567, 83439, 84753, 92637, 147447, 147533, 161163, 250317, 256667, 398653, 435737, 442599, 770001, 1195959, 1307211, 1327797, 2310003, 3587877, 3921633, 3983391, 6930009, 10763631, 11764899, 18736691, 56210073, 168630219, 505890657]

約数ペア:

[(1, 505890657), (3, 168630219), (9, 56210073), (27, 18736691), (43, 11764899), (47, 10763631), (73, 6930009), (127, 3983391), (129, 3921633), (141, 3587877), (219, 2310003), (381, 1327797), (387, 1307211), (423, 1195959), (657, 770001), (1143, 442599), (1161, 435737), (1269, 398653), (1971, 256667), (2021, 250317), (3139, 161163), (3429, 147533), (3431, 147447), (5461, 92637), (5969, 84753), (6063, 83439), (9271, 54567), (9417, 53721), (10293, 49149), (16383, 30879), (17907, 28251), (18189, 27813)]