1991295

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 3875040

約数和(自身を除く): 1883745

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 137, 153, 171, 255, 285, 323, 411, 685, 765, 855, 969, 1233, 1615, 2055, 2329, 2603, 2907, 4845, 6165, 6987, 7809, 11645, 13015, 14535, 20961, 23427, 34935, 39045, 44251, 104805, 117135, 132753, 221255, 398259, 663765, 1991295]

約数ペア:

[(1, 1991295), (3, 663765), (5, 398259), (9, 221255), (15, 132753), (17, 117135), (19, 104805), (45, 44251), (51, 39045), (57, 34935), (85, 23427), (95, 20961), (137, 14535), (153, 13015), (171, 11645), (255, 7809), (285, 6987), (323, 6165), (411, 4845), (685, 2907), (765, 2603), (855, 2329), (969, 2055), (1233, 1615)]