20778832

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9343}}^1$

素因数の和:9490

約数の個数: 20

約数和(自身を含む): 40552960

約数和(自身を除く): 19774128

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9343, 18686, 37372, 74744, 149488, 1298677, 2597354, 5194708, 10389416, 20778832]

約数ペア:

[(1, 20778832), (2, 10389416), (4, 5194708), (8, 2597354), (16, 1298677), (139, 149488), (278, 74744), (556, 37372), (1112, 18686), (2224, 9343)]