128207728

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1409}}^1$

素因数の和:1486

約数の個数: 60

約数和(自身を含む): 279044640

約数和(自身を除く): 150836912

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 121, 176, 188, 242, 376, 484, 517, 752, 968, 1034, 1409, 1936, 2068, 2818, 4136, 5636, 5687, 8272, 11272, 11374, 15499, 22544, 22748, 30998, 45496, 61996, 66223, 90992, 123992, 132446, 170489, 247984, 264892, 340978, 529784, 681956, 728453, 1059568, 1363912, 1456906, 2727824, 2913812, 5827624, 8012983, 11655248, 16025966, 32051932, 64103864, 128207728]

約数ペア:

[(1, 128207728), (2, 64103864), (4, 32051932), (8, 16025966), (11, 11655248), (16, 8012983), (22, 5827624), (44, 2913812), (47, 2727824), (88, 1456906), (94, 1363912), (121, 1059568), (176, 728453), (188, 681956), (242, 529784), (376, 340978), (484, 264892), (517, 247984), (752, 170489), (968, 132446), (1034, 123992), (1409, 90992), (1936, 66223), (2068, 61996), (2818, 45496), (4136, 30998), (5636, 22748), (5687, 22544), (8272, 15499), (11272, 11374)]