80520784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{264871}}^1$

素因数の和:264898

約数の個数: 20

約数和(自身を含む): 164220640

約数和(自身を除く): 83699856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 264871, 529742, 1059484, 2118968, 4237936, 5032549, 10065098, 20130196, 40260392, 80520784]

約数ペア:

[(1, 80520784), (2, 40260392), (4, 20130196), (8, 10065098), (16, 5032549), (19, 4237936), (38, 2118968), (76, 1059484), (152, 529742), (304, 264871)]