78021904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{256651}}^1$

素因数の和:256678

約数の個数: 20

約数和(自身を含む): 159124240

約数和(自身を除く): 81102336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 256651, 513302, 1026604, 2053208, 4106416, 4876369, 9752738, 19505476, 39010952, 78021904]

約数ペア:

[(1, 78021904), (2, 39010952), (4, 19505476), (8, 9752738), (16, 4876369), (19, 4106416), (38, 2053208), (76, 1026604), (152, 513302), (304, 256651)]