28308080

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{821}}^1$

素因数の和:1265

約数の個数: 40

約数和(自身を含む): 66049344

約数和(自身を除く): 37741264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 821, 862, 1642, 1724, 2155, 3284, 3448, 4105, 4310, 6568, 6896, 8210, 8620, 13136, 16420, 17240, 32840, 34480, 65680, 353851, 707702, 1415404, 1769255, 2830808, 3538510, 5661616, 7077020, 14154040, 28308080]

約数ペア:

[(1, 28308080), (2, 14154040), (4, 7077020), (5, 5661616), (8, 3538510), (10, 2830808), (16, 1769255), (20, 1415404), (40, 707702), (80, 353851), (431, 65680), (821, 34480), (862, 32840), (1642, 17240), (1724, 16420), (2155, 13136), (3284, 8620), (3448, 8210), (4105, 6896), (4310, 6568)]