258560

素因数分解:

$2^9\times 5^1\times {\mathrm{101}}^1$

素因数の和:124

約数の個数: 40

約数和(自身を含む): 626076

約数和(自身を除く): 367516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 512, 640, 808, 1010, 1280, 1616, 2020, 2560, 3232, 4040, 6464, 8080, 12928, 16160, 25856, 32320, 51712, 64640, 129280, 258560]

約数ペア:

[(1, 258560), (2, 129280), (4, 64640), (5, 51712), (8, 32320), (10, 25856), (16, 16160), (20, 12928), (32, 8080), (40, 6464), (64, 4040), (80, 3232), (101, 2560), (128, 2020), (160, 1616), (202, 1280), (256, 1010), (320, 808), (404, 640), (505, 512)]