81017748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16921}}^1$

素因数の和:16957

約数の個数: 72

約数和(自身を含む): 246384320

約数和(自身を除く): 165366572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 4788, 16921, 33842, 50763, 67684, 101526, 118447, 152289, 203052, 236894, 304578, 321499, 355341, 473788, 609156, 642998, 710682, 964497, 1066023, 1285996, 1421364, 1928994, 2132046, 2250493, 2893491, 3857988, 4264092, 4500986, 5786982, 6751479, 9001972, 11573964, 13502958, 20254437, 27005916, 40508874, 81017748]

約数ペア:

[(1, 81017748), (2, 40508874), (3, 27005916), (4, 20254437), (6, 13502958), (7, 11573964), (9, 9001972), (12, 6751479), (14, 5786982), (18, 4500986), (19, 4264092), (21, 3857988), (28, 2893491), (36, 2250493), (38, 2132046), (42, 1928994), (57, 1421364), (63, 1285996), (76, 1066023), (84, 964497), (114, 710682), (126, 642998), (133, 609156), (171, 473788), (228, 355341), (252, 321499), (266, 304578), (342, 236894), (399, 203052), (532, 152289), (684, 118447), (798, 101526), (1197, 67684), (1596, 50763), (2394, 33842), (4788, 16921)]