166206875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{15643}}^1$

素因数の和:15680

約数の個数: 20

約数和(自身を含む): 219923352

約数和(自身を除く): 53716477

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 10625, 15643, 78215, 265931, 391075, 1329655, 1955375, 6648275, 9776875, 33241375, 166206875]

約数ペア:

[(1, 166206875), (5, 33241375), (17, 9776875), (25, 6648275), (85, 1955375), (125, 1329655), (425, 391075), (625, 265931), (2125, 78215), (10625, 15643)]