25498240

素因数分解:

$2^7\times 5^1\times {\mathrm{39841}}^1$

素因数の和:39860

約数の個数: 32

約数和(自身を含む): 60958260

約数和(自身を除く): 35460020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 39841, 79682, 159364, 199205, 318728, 398410, 637456, 796820, 1274912, 1593640, 2549824, 3187280, 5099648, 6374560, 12749120, 25498240]

約数ペア:

[(1, 25498240), (2, 12749120), (4, 6374560), (5, 5099648), (8, 3187280), (10, 2549824), (16, 1593640), (20, 1274912), (32, 796820), (40, 637456), (64, 398410), (80, 318728), (128, 199205), (160, 159364), (320, 79682), (640, 39841)]