1311728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 40

約数和(自身を含む): 2879280

約数和(自身を除く): 1567552

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 257, 319, 464, 514, 638, 1028, 1276, 2056, 2552, 2827, 4112, 5104, 5654, 7453, 11308, 14906, 22616, 29812, 45232, 59624, 81983, 119248, 163966, 327932, 655864, 1311728]

約数ペア:

[(1, 1311728), (2, 655864), (4, 327932), (8, 163966), (11, 119248), (16, 81983), (22, 59624), (29, 45232), (44, 29812), (58, 22616), (88, 14906), (116, 11308), (176, 7453), (232, 5654), (257, 5104), (319, 4112), (464, 2827), (514, 2552), (638, 2056), (1028, 1276)]