199038245

素因数分解:

$5^1\times 7^2\times {\mathrm{812401}}^1$

素因数の和:812420

約数の個数: 12

約数和(自身を含む): 277841484

約数和(自身を除く): 78803239

約数列:

[1, 5, 7, 35, 49, 245, 812401, 4062005, 5686807, 28434035, 39807649, 199038245]

約数ペア:

[(1, 199038245), (5, 39807649), (7, 28434035), (35, 5686807), (49, 4062005), (245, 812401)]