51640804784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{78720739}}^1$

素因数の和:78720788

約数の個数: 20

約数和(自身を含む): 102494403480

約数和(自身を除く): 50853598696

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 78720739, 157441478, 314882956, 629765912, 1259531824, 3227550299, 6455100598, 12910201196, 25820402392, 51640804784]

約数ペア:

[(1, 51640804784), (2, 25820402392), (4, 12910201196), (8, 6455100598), (16, 3227550299), (41, 1259531824), (82, 629765912), (164, 314882956), (328, 157441478), (656, 78720739)]