1281320008

素因数分解:

$2^3\times {\mathrm{277}}^1\times {\mathrm{578213}}^1$

素因数の和:578496

約数の個数: 16

約数和(自身を含む): 2411152380

約数和(自身を除く): 1129832372

約数列:

[1, 2, 4, 8, 277, 554, 1108, 2216, 578213, 1156426, 2312852, 4625704, 160165001, 320330002, 640660004, 1281320008]

約数ペア:

[(1, 1281320008), (2, 640660004), (4, 320330002), (8, 160165001), (277, 4625704), (554, 2312852), (1108, 1156426), (2216, 578213)]