77887916

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{53939}}^1$

素因数の和:53981

約数の個数: 18

約数和(自身を含む): 143857980

約数和(自身を除く): 65970064

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 53939, 107878, 215756, 1024841, 2049682, 4099364, 19471979, 38943958, 77887916]

約数ペア:

[(1, 77887916), (2, 38943958), (4, 19471979), (19, 4099364), (38, 2049682), (76, 1024841), (361, 215756), (722, 107878), (1444, 53939)]