80777008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388351}}^1$

素因数の和:388372

約数の個数: 20

約数和(自身を含む): 168544768

約数和(自身を除く): 87767760

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388351, 776702, 1553404, 3106808, 5048563, 6213616, 10097126, 20194252, 40388504, 80777008]

約数ペア:

[(1, 80777008), (2, 40388504), (4, 20194252), (8, 10097126), (13, 6213616), (16, 5048563), (26, 3106808), (52, 1553404), (104, 776702), (208, 388351)]