131620144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{432961}}^1$

素因数の和:432988

約数の個数: 20

約数和(自身を含む): 268436440

約数和(自身を除く): 136816296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 432961, 865922, 1731844, 3463688, 6927376, 8226259, 16452518, 32905036, 65810072, 131620144]

約数ペア:

[(1, 131620144), (2, 65810072), (4, 32905036), (8, 16452518), (16, 8226259), (19, 6927376), (38, 3463688), (76, 1731844), (152, 865922), (304, 432961)]