277432820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1981663}}^1$

素因数の和:1981679

約数の個数: 24

約数和(自身を含む): 665839104

約数和(自身を除く): 388406284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1981663, 3963326, 7926652, 9908315, 13871641, 19816630, 27743282, 39633260, 55486564, 69358205, 138716410, 277432820]

約数ペア:

[(1, 277432820), (2, 138716410), (4, 69358205), (5, 55486564), (7, 39633260), (10, 27743282), (14, 19816630), (20, 13871641), (28, 9908315), (35, 7926652), (70, 3963326), (140, 1981663)]