28106240

素因数分解:

$2^9\times 5^1\times {\mathrm{10979}}^1$

素因数の和:11002

約数の個数: 40

約数和(自身を含む): 67395240

約数和(自身を除く): 39289000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 10979, 21958, 43916, 54895, 87832, 109790, 175664, 219580, 351328, 439160, 702656, 878320, 1405312, 1756640, 2810624, 3513280, 5621248, 7026560, 14053120, 28106240]

約数ペア:

[(1, 28106240), (2, 14053120), (4, 7026560), (5, 5621248), (8, 3513280), (10, 2810624), (16, 1756640), (20, 1405312), (32, 878320), (40, 702656), (64, 439160), (80, 351328), (128, 219580), (160, 175664), (256, 109790), (320, 87832), (512, 54895), (640, 43916), (1280, 21958), (2560, 10979)]