64684208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{212777}}^1$

素因数の和:212804

約数の個数: 20

約数和(自身を含む): 131922360

約数和(自身を除く): 67238152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 212777, 425554, 851108, 1702216, 3404432, 4042763, 8085526, 16171052, 32342104, 64684208]

約数ペア:

[(1, 64684208), (2, 32342104), (4, 16171052), (8, 8085526), (16, 4042763), (19, 3404432), (38, 1702216), (76, 851108), (152, 425554), (304, 212777)]