2780140072

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{542149}}^1$

素因数の和:542796

約数の個数: 16

約数和(自身を含む): 5220904500

約数和(自身を除く): 2440764428

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 542149, 1084298, 2168596, 4337192, 347517509, 695035018, 1390070036, 2780140072]

約数ペア:

[(1, 2780140072), (2, 1390070036), (4, 695035018), (8, 347517509), (641, 4337192), (1282, 2168596), (2564, 1084298), (5128, 542149)]