2787820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19913}}^1$

素因数の和:19929

約数の個数: 24

約数和(自身を含む): 6691104

約数和(自身を除く): 3903284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19913, 39826, 79652, 99565, 139391, 199130, 278782, 398260, 557564, 696955, 1393910, 2787820]

約数ペア:

[(1, 2787820), (2, 1393910), (4, 696955), (5, 557564), (7, 398260), (10, 278782), (14, 199130), (20, 139391), (28, 99565), (35, 79652), (70, 39826), (140, 19913)]