278797942780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1991413877}}^1$

素因数の和:1991413893

約数の個数: 24

約数和(自身を含む): 669115063008

約数和(自身を除く): 390317120228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1991413877, 3982827754, 7965655508, 9957069385, 13939897139, 19914138770, 27879794278, 39828277540, 55759588556, 69699485695, 139398971390, 278797942780]

約数ペア:

[(1, 278797942780), (2, 139398971390), (4, 69699485695), (5, 55759588556), (7, 39828277540), (10, 27879794278), (14, 19914138770), (20, 13939897139), (28, 9957069385), (35, 7965655508), (70, 3982827754), (140, 1991413877)]