66703669136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320690717}}^1$

素因数の和:320690738

約数の個数: 20

約数和(自身を含む): 139179771612

約数和(自身を除く): 72476102476

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320690717, 641381434, 1282762868, 2565525736, 4168979321, 5131051472, 8337958642, 16675917284, 33351834568, 66703669136]

約数ペア:

[(1, 66703669136), (2, 33351834568), (4, 16675917284), (8, 8337958642), (13, 5131051472), (16, 4168979321), (26, 2565525736), (52, 1282762868), (104, 641381434), (208, 320690717)]