218975856

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{647}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 619031808

約数和(自身を除く): 400055952

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528, 641, 647, 1282, 1294, 1923, 1941, 2564, 2588, 3846, 3882, 5128, 5176, 7051, 7117, 7692, 7764, 10256, 10352, 14102, 14234, 15384, 15528, 21153, 21351, 28204, 28468, 30768, 31056, 42306, 42702, 56408, 56936, 84612, 85404, 112816, 113872, 169224, 170808, 338448, 341616, 414727, 829454, 1244181, 1658908, 2488362, 3317816, 4561997, 4976724, 6635632, 9123994, 9953448, 13685991, 18247988, 19906896, 27371982, 36495976, 54743964, 72991952, 109487928, 218975856]

約数ペア:

[(1, 218975856), (2, 109487928), (3, 72991952), (4, 54743964), (6, 36495976), (8, 27371982), (11, 19906896), (12, 18247988), (16, 13685991), (22, 9953448), (24, 9123994), (33, 6635632), (44, 4976724), (48, 4561997), (66, 3317816), (88, 2488362), (132, 1658908), (176, 1244181), (264, 829454), (528, 414727), (641, 341616), (647, 338448), (1282, 170808), (1294, 169224), (1923, 113872), (1941, 112816), (2564, 85404), (2588, 84612), (3846, 56936), (3882, 56408), (5128, 42702), (5176, 42306), (7051, 31056), (7117, 30768), (7692, 28468), (7764, 28204), (10256, 21351), (10352, 21153), (14102, 15528), (14234, 15384)]