81311944

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{76421}}^1$

素因数の和:76453

約数の個数: 32

約数和(自身を含む): 183412800

約数和(自身を除く): 102100856

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 76421, 152842, 305684, 534947, 611368, 1069894, 1451999, 2139788, 2903998, 4279576, 5807996, 10163993, 11615992, 20327986, 40655972, 81311944]

約数ペア:

[(1, 81311944), (2, 40655972), (4, 20327986), (7, 11615992), (8, 10163993), (14, 5807996), (19, 4279576), (28, 2903998), (38, 2139788), (56, 1451999), (76, 1069894), (133, 611368), (152, 534947), (266, 305684), (532, 152842), (1064, 76421)]