129280

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1$

素因数の和:122

約数の個数: 36

約数和(自身を含む): 312732

約数和(自身を除く): 183452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 640, 808, 1010, 1280, 1616, 2020, 3232, 4040, 6464, 8080, 12928, 16160, 25856, 32320, 64640, 129280]

約数ペア:

[(1, 129280), (2, 64640), (4, 32320), (5, 25856), (8, 16160), (10, 12928), (16, 8080), (20, 6464), (32, 4040), (40, 3232), (64, 2020), (80, 1616), (101, 1280), (128, 1010), (160, 808), (202, 640), (256, 505), (320, 404)]