128260916

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{347}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 264101376

約数和(自身を除く): 135840460

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 307, 347, 602, 614, 694, 1204, 1228, 1388, 2149, 2429, 4298, 4858, 8596, 9716, 13201, 14921, 26402, 29842, 52804, 59684, 92407, 104447, 106529, 184814, 208894, 213058, 369628, 417788, 426116, 745703, 1491406, 2982812, 4580747, 9161494, 18322988, 32065229, 64130458, 128260916]

約数ペア:

[(1, 128260916), (2, 64130458), (4, 32065229), (7, 18322988), (14, 9161494), (28, 4580747), (43, 2982812), (86, 1491406), (172, 745703), (301, 426116), (307, 417788), (347, 369628), (602, 213058), (614, 208894), (694, 184814), (1204, 106529), (1228, 104447), (1388, 92407), (2149, 59684), (2429, 52804), (4298, 29842), (4858, 26402), (8596, 14921), (9716, 13201)]