28291280

素因数分解:

$2^4\times 5^1\times {\mathrm{353641}}^1$

素因数の和:353654

約数の個数: 20

約数和(自身を含む): 65777412

約数和(自身を除く): 37486132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353641, 707282, 1414564, 1768205, 2829128, 3536410, 5658256, 7072820, 14145640, 28291280]

約数ペア:

[(1, 28291280), (2, 14145640), (4, 7072820), (5, 5658256), (8, 3536410), (10, 2829128), (16, 1768205), (20, 1414564), (40, 707282), (80, 353641)]