19745880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2137}}^1$

素因数の和:2169

約数の個数: 128

約数和(自身を含む): 73889280

約数和(自身を除く): 54143400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2137, 2310, 3080, 4274, 4620, 6411, 8548, 9240, 10685, 12822, 14959, 17096, 21370, 23507, 25644, 29918, 32055, 42740, 44877, 47014, 51288, 59836, 64110, 70521, 74795, 85480, 89754, 94028, 117535, 119672, 128220, 141042, 149590, 164549, 179508, 188056, 224385, 235070, 256440, 282084, 299180, 329098, 352605, 359016, 448770, 470140, 493647, 564168, 598360, 658196, 705210, 822745, 897540, 940280, 987294, 1316392, 1410420, 1645490, 1795080, 1974588, 2468235, 2820840, 3290980, 3949176, 4936470, 6581960, 9872940, 19745880]

約数ペア:

[(1, 19745880), (2, 9872940), (3, 6581960), (4, 4936470), (5, 3949176), (6, 3290980), (7, 2820840), (8, 2468235), (10, 1974588), (11, 1795080), (12, 1645490), (14, 1410420), (15, 1316392), (20, 987294), (21, 940280), (22, 897540), (24, 822745), (28, 705210), (30, 658196), (33, 598360), (35, 564168), (40, 493647), (42, 470140), (44, 448770), (55, 359016), (56, 352605), (60, 329098), (66, 299180), (70, 282084), (77, 256440), (84, 235070), (88, 224385), (105, 188056), (110, 179508), (120, 164549), (132, 149590), (140, 141042), (154, 128220), (165, 119672), (168, 117535), (210, 94028), (220, 89754), (231, 85480), (264, 74795), (280, 70521), (308, 64110), (330, 59836), (385, 51288), (420, 47014), (440, 44877), (462, 42740), (616, 32055), (660, 29918), (770, 25644), (840, 23507), (924, 21370), (1155, 17096), (1320, 14959), (1540, 12822), (1848, 10685), (2137, 9240), (2310, 8548), (3080, 6411), (4274, 4620)]