128869804

素因数分解:

$2^2\times 7^2\times {\mathrm{657499}}^1$

素因数の和:657517

約数の個数: 18

約数和(自身を含む): 262342500

約数和(自身を除く): 133472696

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 657499, 1314998, 2629996, 4602493, 9204986, 18409972, 32217451, 64434902, 128869804]

約数ペア:

[(1, 128869804), (2, 64434902), (4, 32217451), (7, 18409972), (14, 9204986), (28, 4602493), (49, 2629996), (98, 1314998), (196, 657499)]