388630864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1278391}}^1$

素因数の和:1278418

約数の個数: 20

約数和(自身を含む): 792603040

約数和(自身を除く): 403972176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1278391, 2556782, 5113564, 10227128, 20454256, 24289429, 48578858, 97157716, 194315432, 388630864]

約数ペア:

[(1, 388630864), (2, 194315432), (4, 97157716), (8, 48578858), (16, 24289429), (19, 20454256), (38, 10227128), (76, 5113564), (152, 2556782), (304, 1278391)]