8209280

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 19975680

約数和(自身を除く): 11766400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 127, 128, 160, 202, 254, 320, 404, 505, 508, 635, 640, 808, 1010, 1016, 1270, 1616, 2020, 2032, 2540, 3232, 4040, 4064, 5080, 6464, 8080, 8128, 10160, 12827, 12928, 16160, 16256, 20320, 25654, 32320, 40640, 51308, 64135, 64640, 81280, 102616, 128270, 205232, 256540, 410464, 513080, 820928, 1026160, 1641856, 2052320, 4104640, 8209280]

約数ペア:

[(1, 8209280), (2, 4104640), (4, 2052320), (5, 1641856), (8, 1026160), (10, 820928), (16, 513080), (20, 410464), (32, 256540), (40, 205232), (64, 128270), (80, 102616), (101, 81280), (127, 64640), (128, 64135), (160, 51308), (202, 40640), (254, 32320), (320, 25654), (404, 20320), (505, 16256), (508, 16160), (635, 12928), (640, 12827), (808, 10160), (1010, 8128), (1016, 8080), (1270, 6464), (1616, 5080), (2020, 4064), (2032, 4040), (2540, 3232)]