28464640

素因数分解:

$2^9\times 5^1\times {\mathrm{11119}}^1$

素因数の和:11142

約数の個数: 40

約数和(自身を含む): 68254560

約数和(自身を除く): 39789920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11119, 22238, 44476, 55595, 88952, 111190, 177904, 222380, 355808, 444760, 711616, 889520, 1423232, 1779040, 2846464, 3558080, 5692928, 7116160, 14232320, 28464640]

約数ペア:

[(1, 28464640), (2, 14232320), (4, 7116160), (5, 5692928), (8, 3558080), (10, 2846464), (16, 1779040), (20, 1423232), (32, 889520), (40, 711616), (64, 444760), (80, 355808), (128, 222380), (160, 177904), (256, 111190), (320, 88952), (512, 55595), (640, 44476), (1280, 22238), (2560, 11119)]