28117120

素因数分解:

$2^7\times 5^1\times {\mathrm{43933}}^1$

素因数の和:43952

約数の個数: 32

約数和(自身を含む): 67219020

約数和(自身を除く): 39101900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 43933, 87866, 175732, 219665, 351464, 439330, 702928, 878660, 1405856, 1757320, 2811712, 3514640, 5623424, 7029280, 14058560, 28117120]

約数ペア:

[(1, 28117120), (2, 14058560), (4, 7029280), (5, 5623424), (8, 3514640), (10, 2811712), (16, 1757320), (20, 1405856), (32, 878660), (40, 702928), (64, 439330), (80, 351464), (128, 219665), (160, 175732), (320, 87866), (640, 43933)]